16. Minnesota is the only one of the contiguous forty-eight states that still has a sizable wolf population, and where this predator remains the archenemy of cattle and sheep.

(A) that still has a sizable wolf population, and where

(B) that still has a sizable wolf population, where

(C) that still 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

In choices A and C, the construction that still has..., and where modifies Minnesota with clauses that are not grammatically parallel(怎么不平行了？？？）. In choice B, the omission of and illogically makes the where... clause modify wolf population rather than Minnesota—that is, choice B says in effect that the wolf population is where the wolf remains the archenemy of cattle and sheep. Choice D is grammatically constructed, but it lacks a conjunction that establishes a logical relation between the clauses; since Minnesota as a grammatical subject is separated from the clause following the semicolon, the statement there need not even pertain to Minnesota. In E, the best choice, the parallel construction of where... and where... allows both clauses to modify Minnesota.