Answer:
Certificate of Deposit
Explanation:
The reason is that the certificate of deposit provides the least access to the amount deposited for a certain period of time. So the highest return will be paid by the bank on a loan which is less reskier for the bank which means that it is the loan with no changes in the amount deposited which makes it easier for the bank to earn higher interest on such payments because the investment will be for higher period of time.
