The Figure Given Below Shows the Revenue and Cost Curves

The figure given below shows the revenue and cost curves of a perfectly competitive firm.Figure 10.1

-A perfectly competitive firm produces 50 units of output, at equilibrium, in the short run. The total cost borne by the firm is $300 and the average revenue is $2. Therefore, the firm:

A) is just breaking even.
B) is earning positive profits.
C) is facing a positively sloped demand curve.
D) is suffering losses.
E) is experiencing diseconomies of scale.