请大家帮我看一道大全里的语法题，不胜感激

Marketing researchers have found that, because many residents of the Southeast do not share the same ethnic heritage as Northeasterners, the two varieties of commercially prepared coleslaw most popular in New York City and Boston are virtually ignored by consumers in Richmond and Raleigh.

(A) because many residents of the Southeast do not share the same ethnic heritage as

(B) because many residents of the Southeast do not share the same ethnic heritage with

(C) because many residents of the Southeast do not have the same ethnic heritage as

(D) due to many residents of the Southeast not sharing the same ethnic heritage with

(E) whereas many residents of the Southeast do not share the same ethnic heritage as  答案是C       我选B

     个人认为C项里的the same as 前后不一致啊

我觉得 B 会有歧义～～可能是share ....with 但是也可以理解为  the same....with （适合于...)的意思 

however C用the same as 去比较的是 many residents of the southeast and (many residents of the)northeasterners

请问高手

A和C有什么太大的区别么？ Share the same...as 和 Have the same....as

难道 就是因为必须share ..with?

让我选的话 我很有可能就选A了