Multiple Choice
In the figure given below,the competitive supply curve of a commodity is given by S1,the private marginal benefit curve is D1,the marginal social benefit curve is D2,and the MBE curve reflects the marginal external benefits. 
-In Figure 20-2,the price level when the efficient output is being produced is _____ than the price level when the market equilibrium output is being produced by _____.
A) less;$8
B) more;$4
C) less;$3
D) more;$3
Correct Answer:

Verified
Correct Answer:
Verified
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