(单选题)

What's the main idea about the first paragraph? ( ).

A.Cornerstone On Demand is a provider of cloud-based learning and talent-management software.

B.Placing the right type of workers together will generate 15% increase in performance.

C.Smarter seating can affect company's performance.

D.A study about how a firm get additional profit.

参考答案：C

参考解析：

主旨题。根据首尾原则，首段就提到了本文的主要内容是Placing the right type of workers in close proximity to each other can generate up to a 15 percent increase in organizational performance。选项C是主旨句的同义替换，主旨句强调的是座位的重要性，C项表述正确。选项A在文中出现，但是属于细节信息，排除；选项B少了限定性短语in close proximity，表达不准确；选项D主体词是study，但是重要的不是研究的对象，而是研究的结果，表述不准确。故本题正确答案选C。

知识点：主旨题英语阅读理解通用英语