Suppose the firm faces a price of ​$49​, an average variable cost of ​$26​, and has an average fixed cost of ​$5. In the​ short-run, this firm

A. can cover all its​ costs,
B. cannot cover all its​ costs,
A. and will have a loss per unit of ​$18.
B. and will have a profit per unit of ​$23.
C. and will have a profit per unit of ​$18 .
D. and will have a loss per unit of ​$23.