In 2019, the Creighton Agricultural Products Company used a predetermined manufacturing overhead rate of 150% times direct labor cost. Information for the year is as follows: Actual direct materials cost $812,500 Actual direct labor cost $180,000 Actual overhead costs incurred: $264,000 Total direct labor hours 5,520 What is the amount of the adjustment to COGS required due to the over or under allocation of overhead costs. Select one: a. $4,300 b. $5,900 c. $6,000 d. None of the choices