Question:A module transfers controls to a sub module to perform a task. What happens when the sub-module has completed its task? 

A The sub-module closes the program 
B The sub-module returns control to it's parent module. 
C The sub module waits idly for the main take the control back 
D The sub module transfers control the underlying operating system. 

+ Answer
B 

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Mohammad Towhidul Islam

Editor, VCampus

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