You have been hired to help Buy Now improve its customer service. Some managers at Buy Now are skeptical of the value of investing in customer service. Which of the following facts might corvince them that customer service really is important?

A$.$ It costs about ten times as much to get a new customer as it does to keep an existing customer satsfied.

B$.$ About $65\%$ of a compary's business comes from existing customers.

C$.$ It costs about twice as much to get a new customer as it does to keep an existing customer satisfied.

D$.$ About $75\%$ of a company's business comes from existing customers.