You rent a car for $29.85. The first 140 miles are free, but each mile thereafter costs $0.12. You plan to drive it 165 miles. What is the marginal cost of driving the car?
A- The marginal cost is whatever can be purchased with $29.85 plus $16.56.
B- The marginal cost is $29.85.
C- The marginal cost is $3.00 plus the cost of gas.
D- The marginal cost is the cost of gas plus the initial payment plus some additional payment.