Under what circumstances should you call IDfSessionManager.newSession() instead of
IDfSessionManager.getSession()?

A.
in a multi-threaded environment where there is a single session manager passed to a thread

B.
in a single threaded environment where more than one method is passed the
IDfSessionManager

C.
in any multi-threaded environment

D.
in any class where a method is synchronized and is passed the IDfSessionManager as an
argument or return type