Suppose Billy Bud's Bucking Broncos Employs 20 Workers at a Daily

Suppose Billy Bud's Bucking Broncos employs 20 workers at a daily wage of $60 each. The average product of labor is 30 bucking broncos per day; the marginal product of the last worker is 12 bucking broncos per day; and total fixed cost is $3,600 for equipment. What is the marginal cost of the last bucking bronco produced?

A) $0.20
B) $5.00
C) $240.00
D) $720.00