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
[spoiler]Ans: C[/spoiler]
I know option A, B and E are incorrect options. But could I ask why the answer is not option D? Is it because "and is now commonly called" refers to the harvesting action instead?
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
[spoiler]Ans: C[/spoiler]
I know option A, B and E are incorrect options. But could I ask why the answer is not option D? Is it because "and is now commonly called" refers to the harvesting action instead?