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A year ago
Wealthy superstars like Beyonce hire private security guards because the
A) marginal private benefits are less than the marginal private cost.
B) marginal social benefits are less than the marginal social cost.
C) marginal external benefits from security are zero.
D) marginal private benefits are greater than the marginal private cost.
E) marginal social benefits are greater than the marginal social cost.
Textbook 

Microeconomics for Life: Smart Choices for You


Edition: 2nd
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