Answer: D) Will earn higher profits or experience smaller losses as a result of change in the market
Explanation:
Perfect (pure) competition is a market form with very large no. of buyers (firms) & sellers, homogeneous products , uniform price , perfect information about prices .
So , in such case - firms are only 'price takers' from the industry price maker.
Increase in market demand for the industry product will shift the downward sloping market demand curve rightwards & firm's horizontal demand /AR / MR curve (horizontal because of uniform price & perfectly elastic demand) upwards .
This increase in marginal / average revenue will increase the perfect competition firm's profit or reduce its losses .