GMAT Sentence Correction (SC) | Re: To meet the rapidly rising market demand for fish and

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 allotmentAs fast as + rate is Causing redundancy issue.
b. their natural growth rate, their feed allotment cutAs fast as + rate is Causing redundancy issue.
c. growing them naturally, cutting their feed allotmentIncorrect ||ism
d. they
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