What can you use to implement this?

You have a scenario with an inbound asynchronous Webservice call and you must produce an output file in aspecified folder with the name carried inside a field of the payload of the incoming message. You need to create the Dynamic Configuration variable that can be used by the File receiver adapter in order to set the filename.

What can you use to implement this? Note: There are 2 correct answers to this question.
A . XSLT mapping
B . Standard adapter module
C . Standard message mapping functions
D . Java mapping

Answer: A,D