The property of diminishing marginal product means that, after a point, when additional quantities of: a) a factor are added, output diminishes. b) both labor and capital are added, output diminishes. c) both labor and capital are added, the marginal product of labor diminishes. d) a factor are added when another factor remains fixed, the marginal product of that factor diminishes

Direct materials (4.2 x $15) $ 63direct labor ($12 x 17.5) $210manufacturing overhead ($2.40 x 17.5) $42total job cost $ 315dougan, inc. allocates overhead based on a predetermined overhead rate of $2.40 per direct labor hour. employees are paid $12.00 per hour. job 24 requires 4.2 pounds of direct materials at a cost of $15.00 per pound. employees worked a total of 17.5 hours to complete the job. actual manufacturing overhead costs totaled $80,000 for the year for the company. how much is the cost of job 24?