Minnesota is only ofne of the contiguous forth-eight states that still has a sizable wolf population, and where this predator remains the archenemy of cattle and sheepl

A. that still has a sizable wolf population, and where

B. that still has a sizable wolf population, where

C. that wtill has a sizable population of wolves, and where

D. where the population of wolves is still sizable

E. where there is still a sizable population of wolves and where

我知道　A，C，D肯定不对。答案是E，理由是E项并列结构对称。但B为什么不对，为什么非要用并列结构？就用where引导出一个定语从句修饰miniesota，不行啊？ 望牛牛指点

Minnesota is only ofne of the contiguous forth-eight states that still has a sizable wolf population, and where this predator remains the archenemy of cattle and sheepl

B. that still has a sizable wolf population, where

【句子1，+从句】肯定是错误的结构

且找不到逻辑主语，是Minnesota 还是contiguous forth-eight states？