Bob and Mary Each Have a Ph

question 203

Multiple Choice

Bob and Mary each have a Ph.D.in economics.Bob has a job in private industry at which he earns $90, 000 a year.Mary earns half that much as a college professor.Which of the following could not explain Mary's career choice?

• A)She experiences diminishing marginal utility.
• B)She enjoys the flexibility of her schedule.
• C)She enjoys teaching.
• D)She enjoys the informal atmosphere of a college.
• E)She likes having her summers free to do research.

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