Answer: See explanation
Step-by-step explanation:
Moral muteness occurs when as individuals in the society, we choose not to speak up when we witness an unethical behavior by someone. Even though such issues don't go along with the moral beliefs of the person who witnessed it, he or she decides not to speak against it.
An advertising professional might experience this phenomenon because of the fear of the fear of the fact that speaking up might affect his or her chance of selling the product to the person with the unethical behavior and also due to fear of losing ones job.