You are developing a SQL Server Integration Services (SSIS) package that imports data into a data warehouse
hosted on SQL Azure. The package uses a Foreach container to process text files found in a folder. The
package must be deployed to a single server by using the Project Deployment model. Multiple SQL Server
Agent jobs call the package. Each job is executed on a different schedule. Each job passes a differentfolder
path to the package. You need to configure the package to accept the folder path from each job. Which
package configuration should you use?

A.
.dtsConfig file

B.
Registry Entry

C.
Parent Package Variable

D.
XML Configuration File

E.
Environment Variable

Explanation:
According to these references, this answer looks correct.
Reference:
http://msdn.microsoft.com/en-us/library/ms345179.aspx
http://msdn.microsoft.com/en-us/library/ms141708.aspx
http://msdn.microsoft.com/en-us/library/hh213214.aspx
http://msdn.microsoft.com/en-us/library/hh213296.aspx
http://msdn.microsoft.com/en-us/library/hh213293.aspx