A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.
A. A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,
B. A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,
C. A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,
D. The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that
E. The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,
The OA is E, my answer was D.
There doesn’t seem to be much difference between the two except the organization of the sentence. Can anyone please advice on why D is wrong.
A. A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,
B. A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,
C. A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,
D. The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that
E. The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,
The OA is E, my answer was D.
There doesn’t seem to be much difference between the two except the organization of the sentence. Can anyone please advice on why D is wrong.
