Refer to the exhibit.

The link payload rate is subdivided into multiple fixed-rate channels. In addition, the data rate of a
single cell or packet flow is limited by the bandwidth of an individual channel. If the link is an OC-
48, into how many channels can the link be subdivided?

A.
four OC-12 channels

B.
two OC-24 channels

C.
one OC-48 channel

D.
three OC-16 channels