Lee Is a Rational Consumer with Complete Health Insurance (No

Lee is a rational consumer with complete health insurance (no copayments or deductibles) .He will use medical care up to the point at which his:

A) total benefit is equal to the cost of care paid by the insurance provider.
B) marginal benefit is zero.
C) marginal benefit is equal to the marginal cost of care paid by the insurance provider.
D) total benefit is equal to zero.