Venus Crates manufactures custom crates for a variety of uses. The following data have been recorded for Job 551, which was recently completed. Direct materials used cost $7,200. There were 90 machine hours used on this job. The predetermined overhead rate is $39 per machine hour used. There were 180 direct labor hours worked on this job at a direct labor wage rate of $29 per hour. What is the total manufacturing cost of Job 551? O A. $5,220 O B. $10,710 O C. $15,930 O D. $7,470