Technician a Says That the Reason for Twisting the Wires

Multiple Choice

Technician A says that the reason for twisting the wires on a J1939 data backbone is to enable the data bus to act as a giant aerial. Technician B says that J1939 requires the data wire pair to cycle through one full cycle twist per 1 centimeter of length. Who is correct?

A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B