1.        Although dozens of New York’s small museums are either devoted to local history or various ethnic groups, there are many one-of-a-kind museums from Manhattan to the Bronx that are open for exploration on summer weekends.

(A) Although dozens of New York’s small museums are either devoted to local history or various ethnic groups, there are

(B) Although dozens of New York’s small museums are devoted to local history or various ethnic groups,

(C) Dozens of New York’s small museums are devoted to local history or various ethnic groups, but there are

(D) Dozens of New York’s small museums are devoted to local history or various ethnic groups, and there are also（D）

(E) Devoted to local history or various ethnic groups, dozens of New York’s small museums and also

这道题我很不明白，

A either or不对称，错

B 为什么错？

C 为什么错？but难道不正确吗？

E 改变了原句意思，我明白了

BC请大家帮我解释一下

B应该是只有从句没主句吧

C应该是没有转折的意思吧，但是单纯从语法出发是没啥错

E似乎没be动词，不成句子