请教Prep 1 [SC1],急~~~谢谢!

To meet the rapidly rising market demand for fish and seafood, suppliers are growing fish twice as fast as their natural growth rate, cutting their feed allotment by nearly half and raising them on special diets.

(A) their natural growth rate, cutting their feed allotment

(B) their natural growth rate, their feed allotment cut

(C) growing them naturally, cutting their feed allotment

(D) they grow naturally, cutting their feed allotment

(E) they grow naturally, with their feed allotment cut

没找到讨论帖

答案是D,请教下思路!~~

额,找到讨论帖了,真是不好意思的说```

斑竹可以把它删了```