Q.

Which of these are true with respect to the message arrows?

A. the synchronous message arrow is used when a sending individual continues execution after sending the message
B. the asynchronous message arrow is used when a sending individual suspends execution after sending the message
C. the dashed arrow is used either to show the return of control from a synchronous message or to create a new entity
D. all of the mentioned
Answer» C. the dashed arrow is used either to show the return of control from a synchronous message or to create a new entity
Explanation: the asynchronous message arrow is used when a sending individual continues execution after sending the message and the synchronous message arrow is used when a sending individual suspends execution after sending the message.
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