求助~GWD1-30~

陌下清风

GWD1-Q30:

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 now commonly called

E.which it is now commonly called

答案为c，就弱弱的问一个小知识点，那个now与called的时态不矛盾吗？有点晕...希望各位同志前来指教，谢谢~~~

myungryong

called不是过去式 而是作为过去分词修饰plant