<em>B) They loan out the money in their customers' accounts and charge a higher interest rate on the loans. </em>
Explanation:
The reason you recieve money for putting money in a checking or savings account is because the bank needs money to loan to other customers. Because the customer recieving the loan pays the bank interest in return, the bank can afford to share some of the money gained in interest with customers to encourage them to keep money in the bank.
