Answer:
d. decrease production to less than 500 units.
Explanation:
The demand curve facing a firm in perfectly competitive market is infinitely elastic, The horizontal demand curve stands as the perfectly competitive firm's marginal revenue curve as well as average revenue curve, which means Price (P) = Average Revenue (AR) = Marginal Revenue (MR).
The equilibrium equation for profit maximization is MR = MC
The disequilibrium equation are:
1. If MC is greater than MR (The firm should reduce production for higher profit
2. If MC less than MR (The firm should increase production for higher profit
In this question, MC = $1.50 and MR = $1.25 (MR = P). Therefore, the firm should decrease output to less than 500 to maximize profit,