GWD TN-1 sc 30

WesternCder

The ancient Anasazi harvested such native desert vegetation as the purple-flowered bee plant, what they now commonly call wild spinach in northern Arizona and other parts of the southwestern United States
.
A.what they now commonly call

B.a plant that they now commonly call

C.now commonly called

D.and is mow commonly called

E.which it is now commonly called

求解释，为啥选C？以及为啥不选B？

WesternCder

哦，看到你的解释了，谢谢！那就是AB都是知道不清~

elaineyll

a plant that 同位语的确不错，是个优选结构。

但是，后面的they却无指代。。