Rafa runs a profit maximizing firm.It turns out that for Rafa his fixed costs are $1,000 and his avoidable fixed costs are $600.In his current short run situation when he has successfully set his marginal revenue equal to his marginal cost where marginal costs are rising, he is disappointed to discover that his economics profits are negative.In fact at this production level his profits are $- 500.

Which one of the following statements is TRUE?

Group of answer choices

A.Rafa should shut down in the short run.

B.Rafa's accounting profits must also be negative in the short run.

C.Rafa should continue to produce at a loss in the short run.

D.If Rafa is a monopolist, he should continue to operate in the short run, otherwise he should shut down.