Morrow Company applies overhead based on direct labor hours. At the beginning of the year, Morrow estimates overhead to be $620,000, machine hours to be 180,000, and direct labor hours to be 40,000. During February, Morrow has 4,200 direct labor hours and 8,000 machine hours. What is the predetermined overhead rate?
A. $3.44 per machine hour B. $147.62 per direct labor hour C. $15.50 per direct labor hour D. $77.50 per machine hour