Part IlI Computational Multiple Choice (15 points) he following data pertai L. The Nautical Corporation manufactures custom-made wood wall units.T Job X4A: $9,000 300 hours $15 100 hours Direct materials placed into production Direct labor hours worked Direct labor rate per hour Machine hours worked Factory overhead rate is $22.50 per machine hour. Job X4A consists of 500 units. One-half of Job X4A was sold for $10,000. What is the total amount of costs assigned to Job X4A a. $20,250 b. $15,750 c. $13,500 d. $9,000 2. The Nautical Corporation manufactures custom-made wood wall units. The following data pe Job X4A: Direct materials placed into production Direct labor hours worked Direct labor rate per hour Machine hours worked $9,000 300 hours $15 100 hours Factory overhead rate is $22.50 per machine hour. Job X4A consists of 500 units. One-half of Job X4A was sold for $10,000. What is the cost per unit for Job X4A? a. $18 b. $31.50 c. $27 d. $40.50