Refer to the Accompanying Figure, Which Shows the Market for Fish

Refer to the accompanying figure, which shows the market for fish, to answer the questions.
-If the government sets a quota of 300 pounds of fish caught per day, then fish will sell for:

A) $20 per pound.
B) $30 per pound.
C) $40 per pound.
D) $50 per pound.
E) $70 per pound.