(单选题)

How did the researchers conduct the research?

A.It was carried out in a lab.

B.42 subjects’ eye movements were recorded.

C.The students’ daily movements were tracked.

D.Its subjects’ personalities were determined by computer.

参考答案：B

参考解析：

细节理解题。根据第三段中的“whose team follows 42 study subjects around the university campus recording their eye movements, then determines their personality traits(特点with "ell-established questionnaires" for determining personality type”（该研究小组在大学校园内对42名研究对象进行了观察，记录他们的眼球运动，然后用成熟的调查问卷来确定他们的性格特征）可知，研究人员通过记录42名研究对象的眼球运动来进行这项研究的，故选B。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语