In the year-end financial statements, the Manufacturing Overhead account should have: a. A credit balance, representing accumulated overhead applied and amounts owed to suppliers of overhead items b. Either a debit or a credit balance, depending upon whether the overhead application rate used throughout the year was higher or lower than 100% c. A zero balance, since all overhead costs incurred during the period should have been assigned to the production of the period d. A debit balance, representing overhead on hand and available for use