How did the woman learn about the process she described?A.She was doing research for a pap

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How did the woman learn about the process she described?

A.She was doing research for a paper on it.

B.She read a newspaper article about it.

C.She was told about it by her roommate.

D.She heard about it in class.

请帮忙给出正确答案和分析,谢谢!

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