Consider a firm that uses the following rule to decide how much output to produce

Consider a firm that uses the following rule to decide how much output to produce: If the profit margin (price minus short-run average total cost) is positive, the firm will produce more output. compared to a profit-maximizing firm, the firm will

A) produce more output and earn lower economic profit
b) produce more output and earn higher economic profit.
c) produce less output and earn lower economic profit.
d) produce less output and earn higher economic profit.