Multiple Choice
Which of the following situations is clearly and unambiguously descriptive of a positive externality?
A) Jack feels better after his daily walk.
B) Joriel studies harder than anyone in his class.
C) Professor Gomez gave an unannounced quiz to her history class yesterday.
D) The President of the United States yesterday signed a legislative act that is very popular in the country.
E) none of the above
Correct Answer:

Verified
Correct Answer:
Verified
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