Choose the best answer to this question based on the information in Text A of Unit 1.　2. Western psy

Choose the best answer to this question based on the information in Text A of Unit 1.　2. Western psychological studies are criticized because（）.

A.they use undergraduate students as subjects

B.they offer subjects cash payment

C.they assume human beings are basically the same

D.they mainly use poor, uneducated subjects

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