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 gradual reversion to the raising of agricultural staples

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

a gradual reversion back to the raising of agricultural staples again

a gradual reversion to raise agricultural staples

a gradual reversion into the raising of agricultural staples

[spoiler]OA: A
but to me option A doesn't sound good as it also has the ing form....
IMO:D[/spoiler]