求助 GWD 26-Q11 as的用法

lisa78

The reasons for yesterday’s sharp rise in the stock market were much the same as that behind last week’s rally: a surge in the economy to a 5.6 percent annual growth rate and improved corporate earnings balanced by the lack of signs of inflationary pressure.

A.    That  
B.    those
C.    what was
D.    for that
E.    they were
答案是选的B，我想请问一下，E为什么错了呢~
是和AS的用法有关吗？谢谢大家了 open to discussion~

lisa78

噢~原来是指代方面出了问题~谢谢LS的解释~~~

BlackTTea

我的理解是those指代前面的reasons，E中they错误，指代的时候单数用that，复数用those。~