During the eighteenth century, widespread changes in agricul

[varun289]

During the eighteenth century, widespread changes in agriculture, known as the agrarian
revolution, involving the large-scale introduction of enclosed fields, of new farming techniques
and crops, and the substitution of commercial for subsistence farming.
A. revolution, involving the large-scale introduction of enclosed fields, of new farming techniques
and crops, and
B. revolution, involved the large-scale introduction of enclosed fields and of new farming
techniques and crops, and
C. revolution, which involved the large-scale introduction of enclosed fields and of new farming
techniques and crops, and
D. revolution involved the large-scale introduction of enclosed fields, new farming techniques and
crops, and of
E. revolution that involved the large-scale introduction of enclosed fields and new farming
techniques and crops, and of

[megamutter]

Hey varun289,

here you nee to make sure, that your answer contains a main clause.

This is not the case with A, C, and E

With D you get a sentence that is not parallel (the "of" before new farming techniques is missing).

D should be the right answer.

Regards

[Lifetron]

The structure is this -> X of a and of b, and Y

Introduction of enclosed fields and of new farming techniques and crops, and substitution

IMO B

[varun289]

hi bose u right but now my question why wrong C ??

yes it is x of ,,,,and of and Y

[Lifetron]

hi bose u right but now my question why wrong C ??

yes it is x of ,,,,and of and Y

During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution, involving the large-scale introduction of enclosed fields, of new farming techniques and crops, and the substitution of commercial for subsistence farming.

A. revolution, involving the large-scale introduction of enclosed fields, of new
farming techniques and crops, and
B. revolution, involved the large-scale introduction of enclosed fields and of new
farming techniques and crops, and
C. revolution, which involved the large-scale introduction of enclosed fields and of
new farming techniques and crops, and
D. revolution involved the large-scale introduction of enclosed fields, new farming
techniques and crops, and of
E. revolution that involved the large-scale introduction of enclosed fields and new
farming techniques and crops, and of

The actual meaning of the sentence is "changes in agriculture" = "introduction" + "substitution" and the "known as the agrarian revolution" part is non-essential.

C does this "revolution" = "introduction" + "substitution", leaving the "changes in agriculture" part incomplete.

Hope I am not confusing you !

[GMATGuruNY]

During the eighteenth century, widespread changes in agriculture, known as the agrarian
revolution, involving the large-scale introduction of enclosed fields, of new farming techniques
and crops, and the substitution of commercial for subsistence farming.
A. revolution, involving the large-scale introduction of enclosed fields, of new farming techniques
and crops, and
B. revolution, involved the large-scale introduction of enclosed fields and of new farming
techniques and crops, and
C. revolution, which involved the large-scale introduction of enclosed fields and of new farming
techniques and crops, and
D. revolution involved the large-scale introduction of enclosed fields, new farming techniques and
crops, and of
E. revolution that involved the large-scale introduction of enclosed fields and new farming
techniques and crops, and of

In A, C, and E, widespread changes (subject) lacks a verb.
The result in each case is an incomplete sentence.
The required verb here is involved:
Widespread changes INVOLVED the large-scale introduction of enclosed fields.
Eliminate A, C, and E.

In D, the following list is not parallel: the large-scale introduction of enclosed fields, new farming techniques and crops, and OF the substitution...
Eliminate D.

The best answer is B

[meenakshimiyer]

Choice A uses "involving" which should be replaced by "involved" as we are talking about past. In answer choice C, use of "which" is redundant. In answer choice D, use of "of" in the second arm doesn't make sense. In answer choice E, use of "of" in the second arm doesn't make sense. Hence, the answer is B.