Final answer:
The true statement in this situation is that Big Bank, as the payor bank, must reimburse Small Bank, the depositor bank.
Step-by-step explanation:
In this situation, option c is true: Big Bank is the payor bank and hence, must reimburse Small Bank, the depositor bank. When Chuck deposited his paycheck drawn on Big Bank at Small Bank, Small Bank credited Chuck's account with the deposit. However, three days later, Small Bank received notification that the paycheck was dishonored due to insufficient funds from Big Bank. As a result, the amount of the check was deducted from Chuck's Small Bank account.