Why is Frame Relay’s throughput lower than that of ATM? A.Frame Relaying have error control(ARQ)…

Why is Frame Relay’s throughput lower than that of ATM?

A.Frame Relaying have error control(ARQ) functionality but not ATM.
B.ATM does not need to have CRC checking/generation or bit stuffings functionality in the
packets as in Frame Relay.
C.Frame Relaying needs to do multiplexing of logical channels but not ATM.
D.Although both Frame relay and ATM have frame boundary recognition(flags) ,ATM dosen’t
have bit stuffing as in frame Relaying.

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