Trenton worked on four jobs during its first year of operation: nos. 401, 402, 403, and 404. A
review of job no. 403's cost record revealed direct material charges of $40,000 and total
manufacturing costs of $50,000. If Trenton applies overhead at 150% of direct labor cost, the
overhead applied to job no. 403 must have been:

A. $0.
B. $6,000.
C. $4,000.
D. $3,333.
E. $5,000.