Concept:Communication is the two-way exchange of messages between a sender and a receiver.
Explanation:It involves sending and receiving information, ideas, feelings or opinions.
The sender transmits the message.
The receiver listens, understands and may give feedback.
This feedback makes the process a two-way flow.
Advertisement, marketing and transportation do not necessarily involve this two-way message exchange.
Therefore, communication is the correct term.
Answer:B. Communication