请问B为什么错

lllmmm

Unlike the original National Museum of Science and Technology in Italy, where the models are encased in glass or operated only by staff members, the Virtual Leonardo Project, an online version of the museum, encourages visitors to “touch” each ******the animated functions of the piece.

A.    exhibit, which thereby activates
B.    exhibit, in turn an activation of
C.    exhibit, and it will activate
D.    exhibit and thereby activate
E.    exhibit which, as a result, activates

dzxu

如果选B，activation做谁的同位语解释谁呢？

选D把， touch 和 activate都是 visitors发出的动作。

open to discuss

zfzxzzza

答案应该是D

A which指向模糊
B 语法完全不对
C 语法对但是awkward
E visitors 和activates不对应