(单选题)

What is NOT the factor that could explain the IQ score change according to the passage? ( )

A.Nutrition.

B.Education.

C.Genetics.

D.vironment

参考答案：C

参考解析：

是非题。A选项，营养；B选项，教育；C选项，遗传；D选项，环境。Researchers found the IQ increased caused by environmental factors. Among possible factors were better teaching and learning methods, improvements in test-taking skills and healthier eating.研究人员发现由环境因素（D选项）引起的智商增加。可能的因素包括更好的教育（B选项）和学习方法、考试技能的提高和更健康的饮食（A选项）。并未提到C选项，故本题正确答案选C。

知识点：是非题英语阅读理解通用英语