Figure: Negative Externalities and Raising Pigs for Pork

Multiple Choice

Figure: Negative Externalities and Raising Pigs for Pork (Figure: Negative Externalities and Raising Pigs for Pork) Refer to the figure Negative Externalities and Raising Pigs for Pork.If the marginal external cost of raising a pig for pork is $400, then the socially optimal quantity of pigs to raise is and
The socially optimal price is _.

A) 150; $900
B) 200; $800
C) 250; $700
D) 300; $1,200