请教牛牛～

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   时态；改写后整个不简洁， 而且reversion 与back redundant.
(C) a gradual reversion back to the raising of agricultural staples again  reversion 与back redundant.  again 从哪来的?
(D) a gradual reversion to raise agricultural staples    固定搭配 reversion to + noun.  or reversion of sth to sb/sth;  to do 一般是跟在动词后面的吧！
(E) a gradual reversion into the raising of agricultural staples   固定搭配 reversion to + noun
答案是A，不知道原因～求教～
顺便能不能说说foresee的用法啊～谢谢啦～