【单选题】

According to the context, the word in "oncogenes" in para. 2 means ______. ( )
A．genes that can kill cancer

B．genes that will lead to leukemia
C．viruses that can kill AIDS
D．genes that will lead to cancer

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根据网考网移动考试中心的统计，该试题：

32%的考友选择了A选项

51%的考友选择了B选项

5%的考友选择了C选项

12%的考友选择了D选项

According to the context, the word in "oncogenes" in para. 2 means ______. ( )A．genes that can kill cancer