(单选题)

What happened in the third era? ( )

A.The small companies experienced a harsh life

B.People preferred PCs of big brands

C.The big companies didn’t earn as much as they did the past two periods

D.The companies made standard on the configuration

参考答案：C

参考解析：

细节题。根据文段提到的“The third eras was one of increasing fragmentation”。A项提到小公司正在经历这一个艰难的时刻，这应该是第二阶段在这个行业的主要特征。B项在文段中并没有完全提及。D项提到的标准问题也是在第二阶段的主要特征。因此答案选C。

知识点：细节题英语阅读理解通用英语