Which of the following is suitable as a description of FDDI?
a) Maximum transmission speed is 45 Mbps.
b) The transmission media that can be used are optical fiber, coaxial, cable, twisted-pair, cable, and wireless.
c) FDDI is a token ring-type LAN.
d) FDDI using optical fiber has a dual ring configuration, wherein the primary ring is used for data transmission and the secondary ring is used for control.