Answer:
C) Selecting the message source
Step-by-step explanation:
Firms looking to communicate with their customers undergo various processes. They have to first encode the message they wish to communicate, choose a channel of communication and also select an appropriate source to pass on the message to the customers, such that they are able to decode and understand the message.
Firms may choose to use experts, celebrities or employees to pass on the message, depending on the type of message, the target audience and the objective of the communication effort.