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riteshgupta1
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I'll pick B.

Ritesh,
I think E is wrong because of change in meaning from original sentence. The difference between B & E is:
B: the power of both X and Y
E: both power of X and Y

B means that the 'power of X and the power of Y are going up'. However E means that the 'power of X is going up and Y is going up'. Since in this context Y = electronic devices, E would need to have "the number of" before Y to make more sense.

My thoughts - please let me know if you disagree.
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forumsmba
I'll pick B.

Ritesh,
I think E is wrong because of change in meaning from original sentence. The difference between B & E is:
B: the power of both X and Y
E: both power of X and Y

B means that the 'power of X and the power of Y are going up'. However E means that the 'power of X is going up and Y is going up'. Since in this context Y = electronic devices, E would need to have "the number of" before Y to make more sense.

My thoughts - please let me know if you disagree.


I agree with your explanation but don't we need "have" because of the "power of both X and Y"?
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kwasi7


I agree with your explanation but don't we need "have" because of the "power of both X and Y"?


I pick B as well. I don't think you need "have" because it's referring to "the power" which is singular. Am I mistaken?
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This question tests 4 things

1. ellipted compound clause...
2. IDIOM
3. PRONOUN problem
4. Subject Verb agreement

B is the OA.

A - No need of a verb "ARE", since the verb in the second compound clause is ellipted. The verb of second is "have become".
C, need a plural verb "have" instead of "has"
D and E have pronoun problems. THEIR has no clear referent.
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you are most welcome. hopefully my explanation was right!



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