The distance between the network camera at the monitoring point in the park and the weak current is more than 150 meters, which of the following transmission methods is not reasonable?
A . Signal transmission by adding fiber optic transceivers
B . The video surveillance network of the campus uses a PON network
C . By adding a front switch, the distance between the camera and the switch is less than 90 meters.
D . Video signal transmission is implemented by adding video optical transceivers.
Answer: D