Which statement is true concerning time-division multiplexing?
A.
Time-division multiplexing transmits one voice signal at a time over a four-wire path.
B.
Time-division multiplexing consecutively transmits multiple voice signals across four separate
communication mediums.
C.
Time-division multiplexing simultaneously transmits multiple separate voice signals over one
communication medium by quickly interleaving pieces of each signal, one after another.
D.
Time-division multiplexing consecutively transmits one voice signal at a time over one or more
communication mediums by quickly dividing pieces of each signal into equal bandwidth sizes and
sending them in the order they are received. Information from each data channel is allocated
bandwidth based on the current bandwidth needed for each time slot. This is determined by
whether or not there is data that needs to be transmitted.