sc 1000: strain of plant

[skaria]

If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it increases the likelihood that the impact of a single crop disease or pest will be disastrous.
(A) If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it
(B) If a single strain of plant is used for a given crop over a wide area, as is fostered by modern seed-marketing methods, it
(C) A practice fostered by modern seed-marketing methods, a single strain of plant used for a given crop over a wide area
(D) A single strain of plant used for a given crop over a wide area, a practice fostered by modern seed-marketing methods,（E）
(E) The use of single strain of plant for a given crop over a wide area, a practice fostered by modern seed-marketing methods,


Whats thy opinion?

[beatit]

A: wrong modifier. "A practice" modifies "if a single strain".
B: What does "it" refer to. Incorrect pronoun reference.
C: Wrong modifier. "A single strain of plant" is not "A practice".
D: Wrong modifier. What does "a practice" modify?

E is the answer.

[saiabhay]

agree with slow and steady e is the ans