请教三道大全语法题，谢谢

        In spite of continuing national trends toward increased consumption of specialty foods, agronomists in the Midwest foresee a gradual reversion to the raising of agricultural staples: feed corn and hard red wheat.

(A) a gradual reversion to the raising of agricultural staples

(B) that a gradual reversion back will feature the raising of agricultural staples

(C) a gradual reversion back to the raising of agricultural staples again

(D) a gradual reversion to raise agricultural staples

(E) a gradual reversion into the raising of agricultural staples

A和C有什么区别？该选那个？

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（C）

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

这句子是不是错了，怎么主句会有abuse及have had两个动词呢？