There are many modes of remote visual communication. which is the most common mode?

The best and suitable answer for the following question is Video Conferencing.

Explanation:

Video conferencing is one of the most widely used mode of visual communication or with the help of computer network we used to transmit video and audio data from two or more participants. And each and every participant of video conference having a microphone, speaker and a camera mounted on their computer system.

It will be the most fastest growing mode of computer industry so it will be the most common segment of visual communication.

answer(d) sequencing and iteration;