Official 4 Con 2
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Question 2 of 5
Why does the professor mention the "free-rider" problem?

A.

To review a concept he explained in class.

B.

To give the student a plan to solve her problem.

C.

To clarify the problem the student is facing.

D.

To explain a benefit of working in groups.

我的答案:

正确答案:C

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