Multiple Choice
Use the following to answer questions:
-(Table: Security in a Residential Community) Look at the table Security in a Residential Community. The marginal cost of hiring the fourth security guard is _____, and the marginal social benefit is _____.
A) $150; $200
B) $150; $100
C) $150; $600
D) $600; $1,900
Correct Answer:

Verified
Correct Answer:
Verified
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