Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges.
Peter and Mary are talking about social networks.
- Peter: "Using social networks may have negative effects on students."
- Mary: “________. It distracts them from their studies."
A.You're wrong
B.That's quite true
C.I don't quite agree
D.I'm not sure about that

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