请教一道语法题

lingxia

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


答案为A，请问为什么D不对呢？

rabbitbug

reversion后面的to 是介词,后面一定要跟名词性成分,而不是D中的reversion to do, 成了不定式.