In the world oil market, oil is supplied up to the point where: Select one: A. the marginal cost of the last barrel is at a maximum B. the marginal cost of the last barrel is the greatest distance from the price buyers are willing to pay for that last barrel C. the marginal cost of the last barrel is zero D. the marginal cost of the last barrel is just equal to the price buyers are willing to pay for that last barrel.

D. the marginal cost of the last barrel is just equal to the price buyers are willing to pay for that last barrel.

Explanation:

In the case of the oil market that oil is to be supplied to the point where the marginal cost of the previous barrel should be equivalent to the price where the pruchaser want to pay for that previous barrel

So as per the given situation, the option d is correct

ANd, the rest of the options seems incorrect

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