Multiple Choice
(Table: Security in a Residential Community) The table Security in a Residential Community shows the total cost of hiring a 24-hour security service in a community of 100 residents and each individual resident's total benefit from the service.The efficient number of security guards is _.
A) 0
B) 2
C) 3
D) 4
Correct Answer:

Verified
Correct Answer:
Verified
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