If marginal benefit producing apples is greater than

Solution

When the marginal benefit of producing an additional unit of a good (in this case, apples) is greater than the marginal cost of producing it, a rational producer will increase production to maximize profit or utility. The producer should continue to produce more apples until the marginal benefit equals the marginal cost. This is a fundamental principle in economics: as long as the benefit of producing an additional unit exceeds its cost, production should continue to increase.