gwd 23-20没找到以前的讨论

gwd 23-20没找到以前的讨论
Both the Federal Reserve’s decision that borrowing rates be raised, along with investor’s speculation that another increase might be on the way, helped bolster the dollar in recent weeks by making deposits more attractive.

A. that borrowing rates be raised, along with investor’s speculation that another increase might be on the way, helped bolster the dollar in recent weeks by making
B. that borrowing rates be raised and investors’ speculation of possibly another increase on the way helped to bolster the dollar in recent weeks because they made
C. to raise borrowing rates and investors’ speculation that another increase might be on the way helped to bolster the dollar in recent weeks by making
D. to raise borrowing rates, along with investors’ speculation that another increase might be on the way, helped bolster the dollar in recent weeks because it made
E. to raise borrowing rates and investors’ speculation of possibly another increase on the way helped bolster the dollar in recent weeks because they made
我选E possibly这么用应该没有错啊
答案C

C.speculation that another increase might be on the way 用that-clause解释speculation更清楚和准确。

E.speculation of possibly another increase on the way 感觉不好，觉得呢？而且of表限定，不如that从句解释的作用来的清楚。

弱弱地说一句Vicsi牛牛的话貌似有道理 但是speculation也有投机买卖的意思...还是觉得possibly 副词词性的原因

possibly another increase 这里的possibly修饰another，语法上好像没问题

但是改变了愿意

another increase might be on the way 和possibly another increase on the way意思是不同的

请问because 这里可以吗？