Which of the Following Makes It Necessary for Salespeople to Conduct

Which of the following makes it necessary for salespeople to conduct thorough and continued follow-up with the clients?

A) ​Conducting postsales follow-up gives rise to cognitive dissonance.
B) In present times, customers are more loyal toward brands and vendors than before.
C) Most businesses depend on repeat sales, which depend on follow-up by the salesperson.
D) ​Buyers are more inclined to look for the best deal when they experience good postsale follow-up.