CPM has A. Narrower bandwidth B. Wider bandwidth C. More bandwidth

cpm-has-a-narrower-bandwidth-b-wider-bandwidth-c-more-bandwidth

CPM has

A. Narrower bandwidth

B. Wider bandwidth

C. More bandwidth requirement

D. None of the mentioned

I had been asked this question in class test.

I would like to ask this question from Receiver Synchronization in section Synchronization of Digital Communications

Correct choice is A. Narrower bandwidth

For explanation I would say: The increase in smoothness in the signals concentrate the signal energy in a narrower bandwidth, reducing the amount of bandwidth required.