The correct option is - A ( Video conferences)
Explanation:
Through video conferencing, different participants from multifarious locations can easily interact with other. This method of communication is widely being used nowadays in business organizations. People who are in remote locations can easily be contacted through this method. Thus, this channel of communication is low in planning. And is mostly used for team meetings. But it requires certain equipment’s that are bit costly, making this channel more expensive than from other ones.
Thus, the correct answer is – Video conferencing