Which two channels are responsible for initiating mobile calls?

FCC and RVC
FVC and FCC
FVC and RVC
FCC and RCC

The correct answer is D. FCC and RCC.

The FCC (Frequency Control Channel) is a control channel used to establish and maintain communication between a mobile phone and a base station. The RCC (Routing Control Channel) is a control channel used to route calls between mobile phones and the public switched telephone network (PSTN).

The FVC (Forward Voice Channel) is a voice channel used to carry voice traffic between a mobile phone and a base station. The RVC (Reverse Voice Channel) is a voice channel used to carry voice traffic between a base station and a mobile phone.

The FCC and RCC are responsible for initiating mobile calls because they are the channels that are used to establish communication between a mobile phone and a base station. The FVC and RVC are responsible for carrying voice traffic between a mobile phone and a base station, but they are not responsible for initiating calls.