TO_GET_CONSTANT_TIME_DELAY,_WE_SHOULD_USE_________?$

1.	TO_GET_CONSTANT_TIME_DELAY,_WE_SHOULD_USE_________?$
A.	FDM technique
B.	WDM technique
C.	Synchronous TDM
D.	Non synchronous TDM
Answer» D. Non synchronous TDM

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