An Excel PivotChart cannot use an external file for a data source

Which of the following is the default line spacing in Microsoft Word 2013?

A) 1.15 B) 1.08 C) 2.0 D) 1.0

Explain briefly the operation of each of the following methods and properties of interface IDictionary, which both Dictionary and Sorted- Dictionary implement:

a) Add b) Keys c) Values d) ContainsKey