Sentence Correction

Although moss requires moisture, said Christine Cook, who lectures at the New York Botanical Garden, a moss lawn that needs 1 percent or less than the estimated ten thousand gallons of municipal water that a suburban turf grass lawn receives annually.

A. a moss lawn that needs 1 percent or less than the estimated ten thousand gallons of municipal water that
B. moss lawns need 1 percent or less than the estimated ten thousand gallons of municipal water
C. 1 percent or less, of an estimated ten thousand gallons of municipal water is what moss lawns need, which
D. a moss lawn needs 1 percent or less of the estimated ten thousand gallons of municipal water that
E. what moss lawns need is 1 percent or less of the estimated ten thousand gallons of municipal water than