Explanation:

Answer: B. Twisted-pair wire

The slowest transmission speed are those of Twisted pair wire

The use of two wires twisted together helps to reduce crosstalk and electromagnetic induction. While twisted-pair cable is used by older telephone networks and is the least expensive type of local-area network (LAN) cable, most networks contain some twisted-pair cabling at some point along the network.

Crosstalk between wires is cancelled when an interfering signal is applied equally to both sides of a twisted-pair wire. Twisted-pair wiring can also be wrapped with a shielding conductor sheath, which acts as an electrostatic shield.

Disadvantages Need special adapters which is costly Limited high frequency performance Transmission of high frequency is very poor Susceptible to interference The length of the cable is 100 meters or 328 feet Shielded Twisted Pair Cable Advantages Useful in environments where there is high chance of electronic.