You are creating a SQL Server 2008 Integration Services (SSIS) instance which includes components below for Company.com.

*An OnError method
*A data flow job included in a For Loop container
*A Flat File result component which utilizes a Flat File connection controller.

You decide to log error information from an expression which contains the package version to a doc file when you get error message.
You should make sure that the information is write into the doc file.
Which is the correct answer?

A.
You should utilize the VersionGUID variable.

B.
You should utilize the GUID variable.

C.
You should utilize the TESTID variable.

D.
You should utilize the USERID variable.