一道小题目，想不明白，请大家看看！！

(A) that they
could get their symptoms recognized and treated

(B) to recognize and treat
their symptoms

(C) of getting their symptoms recognized and treated

(D) of recognizing
and treating symptoms（C）

(E) of getting his
or her symptoms recognized and treated

为什么不是A呢?是不是CHANCE后面不可接THAT CLAUSE?

not B:

a. they cannot treat these things themselves, so passive has to be used in this regard

Not C either

a. chance followed by that is obviously an modifier. that and chance does not correlate unless it is written in this way 'by which'

可以翻译一下这句话 their symptoms应该用被动 B错

同意三楼。因为是别人医治他们。要用被动。