Concept:An overdraft is a bank facility that lets an account holder withdraw beyond the available balance.Explanation:A bank overdraft permits a customer to take out money in excess of the amount deposited in the account.This is a short-term credit arrangement, not a cash withdrawal by commercial banks from the Central Bank.It does not refer to a credit balance standing in the customer's name, nor to special deposits made by commercial banks.Therefore, the correct choice is the one that defines the excess withdrawal permitted over the deposit.Answer:A. amount permitted to be withdrawn in excess of one's deposit