Multiple Choice
You decide to join the economics club,but this means you can't join the accounting club because it meets at the same time.Which economic prinicple does this statement BEST represent?
A) The true cost of something is its opportunity cost.
B) "How much" is a decision at the margin.
C) People usually respond to incentives,exploiting opportunities to make themselves better off.
D) There are gains from trade.
Correct Answer:

Verified
Correct Answer:
Verified
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