请教一题？

bigmouse

Adult survivors of child abuse traditionally have had little or no chance that they could get their symptoms recognized and treated.
(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
(E) of getting his or her symptoms recognized and treated

answer:C 我想问的是这里的chance of 是否是习惯搭配，或者有其他的出题点？

littlegirl

用排除法。A，could时态不对，B，D意思不对，E his or her不如their