请教大牛们一个题目

joeyzhu

Downzoning, zoning that typically results in the reduction of housing density, allows for more open space in areas where little water or services exist.

(A) little water or services exist

(B) little water or services exists

(C) few services and little water exists

(D) there is little water or services available（E）

(E) there are few services and little available water

为什么不能选C选项呢？难道不是就近原则决定and后面的动词时态吗？

遥远的绿洲

应该是A and B的组合主语决定谓语，谓语一定是复数形式