Banks serve the following:
A. Safe place for deposits & lend excess funds
B. High interest on savings & low interest on loans
C. Safe place for loans & high interest on savings
D. Safe place for deposits & provide low interest rates

answer: the risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

the answer is b. hope this