Although the lesser cornstalk borer is widely distributed, control of

Although the lesser cornstalk borer is widely distributed, control of them is necessary only in the South.

(A) the lesser cornstalk borer is widely distributed, control of them is
(B) widely distributed, measures to control the lesser cornstalk borer are
(C) widely distributed, lesser cornstalk borer control is
(D) the lesser cornstalk borer is widely distributed, measures to control it are
(E) it is widely distributed, control of the lesser cornstalk borer is

Although the lesser cornstalk borer is widely distributed, control of them is necessary only in the South.

(A) the lesser cornstalk borer is widely distributed, control of them is
Incorrect: "Lessor cornstalk borer" is singular, so "control of THEM" cannot be correct

(B) widely distributed, measures to control the lesser cornstalk borer are
Incorrect: This is saying that the "measures to control lesser cornstalk borer" are widely distributed, when the original sentence says that the "lesser cornstalk borer" itself is widely distributed.

(C) widely distributed, lesser cornstalk borer control is
Incorrect: Saying that "lesser cornstalk borer control" is widely distributed, when it should be the "lesser cornstalk borer" itself that is widely distributed.

(D) the lesser cornstalk borer is widely distributed, measures to control it are
Correct: "It" agrees with "lesser cornstalk borer" and "are" agrees with "measures"

(E) it is widely distributed, control of the lesser cornstalk borer is

Although the lesser cornstalk borer is widely distributed, control of them is necessary only in the South.
(A) the lesser cornstalk borer is widely distributed, control of them is
(B) widely distributed, measures to control the lesser cornstalk borer are
(C) widely distributed, lesser cornstalk borer control is
(D) the lesser cornstalk borer is widely distributed, measures to control it are
(E) it is widely distributed, control of the lesser cornstalk borer is

Hi,

What is the source of this question?

Per the concept of Parallelism: In Although X, Y form-> X and Y should be Parallel.

Option D states: Although the lessor cornstalk borer ...., measures to control.....
Here the bold and underlined parts should be parallel, which is not the case and hence I believe this should not be the correct choice.

Experts kindly let me know if my understanding is correct.

"Although" is used to depict contrast between a dependent clause and an independent clause (the clause containing "although" is the dependent clause).
Although I am tired, I must go.
He did not score well, although he studied hard.

Similarly in option D, a dependent clause " Although the lesser cornstalk borer is widely distributed" is contrasted with an independent clause "measures to control it are necessary only in the South." Option D is alright.

Thanks sayantanc2k for the reply. I understand that 'Although' is used to create a contrast and connects 2 clauses. However, I am not clear on whether there has to be parallelism between the 2 connected entities.

In the examples you quoted, I can notice parallelism between the two entities(refer bold highlighted below):

Although I am tired, I must go.
He did not score well, although he studied hard.

Similarly in the question above, I assume the choice should have been:

Although the lesser cornstalk borer is widely distributed, it has to be controlled only in the South.

Although the lesser cornstalk borer is widely distributed, control of them is necessary only in the South.


(A) the lesser cornstalk borer is widely distributed, control of them is

(B) widely distributed, measures to control the lesser cornstalk borer are

(C) widely distributed, lesser cornstalk borer control is

(D) the lesser cornstalk borer is widely distributed, measures to control it are

(E) it is widely distributed, control of the lesser cornstalk borer is