Answer:
d.
Explanation:
A fractional reserve banking system allows the bank to keep only a part of the fund with them and lend out the rest of it. Fractional reserve banking is a system in which only a fraction of bank deposits are backed by actual cash on hand and available for withdrawal. In this system, there is a greater risk for bank of facing a situation where they might not have enough cash to meet withdrawal needs. Thus, option d. is correct.