Most banks implement customer retention programs aimed at their best customers. They do this because they know that retaining customers usually results in

A) a product development growth strategy.
B) an operational advantage.
C) opportunities for diversification.
D) increased long-term profits.
E) more clearly defined market segments.

Retaining customers can lead to increased profits in the long-term as customers who are satisfied with a bank's services are likely to continue doing business with them, potentially leading to repeat business and referrals. This can be more cost-effective than acquiring new customers as the bank does not have to spend as much on marketing and promotion.