A manufacturing company applies factory overhead based on direct labor hours. At the beginning of the year, it estimated that factory overhead costs would be $331,100 and direct labor hours would be 43,800. Actual manufacturing overhead costs incurred were $315,500, and actual direct labor hours were 53,000. What is the predetermined overhead rate per direct labor hour?

a.$7.56

b.$6.05

c.$11.34

d.$9.07