You are creating a document-level solution for Microsoft Office Excel 2003 by using Visual Studio Tools for the Microsoft Office System (VSTO). The customized workbook contains five worksheets. You add a LinkLabel control named Label to the first worksheet of the workbook. You need to create a LinkClicked event handler that displays the next worksheet in the workbook. Which code segment should you use?

• A. void Label_LinkClicked (object sender, LinkLabelLinkClickedEventArgs e) { Excel.Workbook book = this.Parent as Excel.Workbook ; Excel.Worksheet sheet = book.Sheets [ this.Index + 1] as Excel.Worksheet ; sheet.Activate (); }
• B. void Label_LinkClicked (object sender, LinkLabelLinkClickedEventArgs e) { Excel.Workbook book = this.Site as Excel.Workbook ; Excel.Worksheet sheet = book.Sheets [ this.Index + 1] as Excel.Worksheet ; sheet.Activate (); }
• C. void Label_LinkClicked (object sender, LinkLabelLinkClickedEventArgs e) { Excel.Workbook book = this.Parent as Excel.Workbook ; Excel.Worksheet sheet = book.Sheets [ this.Index + 1] as Excel.Worksheet ; sheet.ShowAllData (); }
• D. void Label_LinkClicked (object sender, LinkLabelLinkClickedEventArgs e) { Excel.Workbook book = this.Site as Excel.Workbook ; Excel.Worksheet sheet = book.Sheets [ this.Index + 1] as Excel.Worksheet ; sheet.ShowAllData (); }

You develop an add-in for Microsoft Office Excel by using Visual Studio Tools for the Microsoft Office System (VSTO). The add-in contains a class that uses the following method.
Public Sub ProcessCells ()
Dim ws As Excel.Worksheet = CType _
( Application.ActiveSheet , Excel.Worksheet ) Dim values As List(Of Object) = New List(Of Object)()
'Your code goes here
End Sub
The add-in must retrieve the values for the cells in the range A1 through E3.
You need to exclude empty cell values when you retrieve cell values from the range.
Which code segment should you use?

• A. Dim rng As Excel.Range = ws.Range ("A1", "E3") For x As Integer = 1 To 3 For y As Integer = 1 To 5 Dim r As Excel.Range = rng.Cells (x, y) If Not r Is Nothing Then values.Add (r.Value2) End If Next Next '...
• B. Dim rng As Excel.Range = ws.Range ("A1", "E3") For Each r As Excel.Range In rng.Cells If Not r Is Nothing Then values.Add (r.Value2) End If Next '...
• C. Dim rng As Excel.Range = ws.Range ("A1", "E3") For Each r As Excel.Range In rng.Cells If Not r.Value2 Is Nothing Then values.Add (r.Value2) End If Next '...
• D. Dim rng As Excel.Range = ws.Range ("A1", "E3") For x As Integer = 0 To 2 For y As Integer = 0 To 5 Dim r As Excel.Range = rng.Cells (x, y) If Not r.Value2 Is Nothing Then values.Add (r.Value2) End If Next Next '...

You create an add-in for Microsoft Office Word by using Visual Studio Tools for the Microsoft Office System (VSTO). You deploy the add-in to a folder on a network share. The folder hosts 20 assemblies. All the assemblies are signed and contain the same digital signature. The add-in runs from a local computer. When the add-in is accessed from a network share by using th e same computer, a security exception is raised. You need to ensure that the add-in can run from the network share. You must achieve this goal without elevating permissions for the other assemblies. What should you do?

• A. Create a code group that is based on the file hash.
• B. Create a code group that is based on the public token that is used to sign the assembly.
• C. Create a code group that is based on the network share URL.
• D. Create a code group that is based on the publisher.

You are creating an add-in for Microsoft Office Word 2007 by using Visual Studio Tools for the Microsoft Office System (VSTO). You customize the Ribbon user interface (UI). You add a Ribbon1.xml file to the add-in. You need to add a built-in save function to a custom tab in the Ribbon UI. Which XML fragment should you use?

• A. <customUI xmlns="http: //schemas.microsoft.com/office/2006/01/customui" xmlns:x="MyNamespace"> ... <button idQ="x:FileSave" /> ... </customUI>
• B. <customUI xmlns="http: //schemas.microsoft.com/office/2006/01/customui" > ... <button tag="FileSave" /> ... </customUI>
• C. <customUI xmlns="http: //schemas.microsoft.com/office/2006/01/customui" > ... <button idMso="FileSave" /> ... </customUI>
• D. <customUI xmlns="http: //schemas.microsoft.com/office/2006/01/customui" > ... <button id="FileSave" /> ... </customUI>