At Big Dog Inc., the marginal cost of production is $32, the marginal external cost of production is $5, and the marginal benefit of production is $35. The marginal social cost of production is:
A.	$2.
B.	$27.
C.	$37.
D.	$40.
Answer:C
At Big Dog Inc., the marginal cost of production is $32, the marginal external cost of production is $5, and the marginal benefit of production is $35. The marginal social cost of production is:
A.	$2. B.	$27. C.	$37. D.	$40.