Horticulturists, who are known for growing the juiciest tomatoes, frequently use a method called cross-pollination, in part because certain features should be developed in their tomatoes and partly because cross-pollination produces results more quickly than does natural selection.


(A) in part because certain features should be developed in their tomatoes

(B) in part for the development of certain features in their tomatoes

(C) partly because of their tomatoes developing certain features

(D) partly because certain features should be developed in their tomatoes

(E) partly to develop certain features in their tomatoes