Marginal revenue equals marginal cost at an output of 15 units. At this output, marginal revenue equals $30, average variable cost equals $20, and average total cost equals $25. In the short run, a profit-maximizing firm will earn a profit of

A) -$75.
B) $0.
C) $75.
D) $150.

Marginal Revenue

The increase in revenue that results from the sale of one additional unit of output.

Average Variable Cost

The total variable costs divided by the quantity of output produced, representing the variable cost per unit.

Average Total Cost

The total cost of production divided by the quantity of output produced, encompassing both fixed and variable costs.