How can you check if a collection is empty or not?

There is MS Visual Studio 2010 and MS .NET Framework 4 application PassGuideApp.
PassGuideApp connects to a MS SQL Server 2008 database PassGuideDB.
To access data from PassGuideDB Entity SQL is used.
How can you check if a collection is empty or not? Select two.

There is MS Visual Studio 2010 and MS .NET Framework 4 application PassGuideApp.
PassGuideApp connects to a MS SQL Server 2008 database PassGuideDB.
To access data from PassGuideDB Entity SQL is used.
How can you check if a collection is empty or not? Select two.

A.
Use entity set attribute…

B.
Use entity set operator…

C.
Use entity set function…

D.
ISNULL

E.
IN

F.
EXISTS

G.
ANYELEMENT

H.
EXCEPT

I.
EMPTYCOLLECTION

Explanation:

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John Galt

The specified answer is correct. See: http://msdn.microsoft.com/en-us/library/vstudio/bb387118%28v=vs.100%29.aspx

Set Operators:
EXISTS – Determines if a collection is empty.

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