[Solved] What happens in a Call/Return pattern?

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Q.	What happens in a Call/Return pattern?
A.	a calling operation in the calling object sends a message to an operation (a.k.a. method) in the called object.
B.	a calling operation in the calling object invokes an operation (a.k.a. method) in the called object.
C.	the calling object waits for a response from the called object.
D.	the calling object does not wait for a response from the called object.
Answer» B. a calling operation in the calling object invokes an operation (a.k.a. method) in the called object.

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