What is the purpose of the WLAN component shown in the exhibit?

A.
Connecting an unterminated coaxial RF cable to an N-type female connector on an antenna

B.
Adapting an antenna with an SMA connector to an AP with an N-type female connector

C.
Connecting a lightning arrestor (gas discharge tube) to a grounding rod cable

D.
Providing a fixed amount of signal attenuation between a signal source and an SMA antenna
connector