Sentence Correction

Most nations regard their airspace as extending upward as high as an aircraft can fly; no specific altitude, however, has been officially recognized as a boundary.
(A) as extending
(B) as the extent
(C) to be an extent
(D) to be an extension
(E) to extend

plz explain

pradeepkaushal9518 wrote:Most nations regard their airspace as extending upward as high as an aircraft can fly; no specific altitude, however, has been officially recognized as a boundary.
(A) as extending
(B) as the extent
(C) to be an extent
(D) to be an extension
(E) to extend

plz explain

" regard as " is a correct idiom. " A" is clear than B. What is OE and OA?

pradeepkaushal9518 wrote:Most nations regard their airspace as extending upward as high as an aircraft can fly; no specific altitude, however, has been officially recognized as a boundary.
(A) as extending
(B) as the extent
(C) to be an extent
(D) to be an extension
(E) to extend

plz explain

i tend to lean toward E. regard their airspace to extend upward as high as an aircraft can fly.

could we please have the OA?

regard as is the correct idiom.. B changes the meaning..

regard their airspace as the extent?

I will go with A

Thanks,
Viju

pradeepkaushal9518 wrote:Most nations regard their airspace as extending upward as high as an aircraft can fly; no specific altitude, however, has been officially recognized as a boundary.
(A) as extending
(B) as the extent
(C) to be an extent
(D) to be an extension
(E) to extend

plz explain

Should be B.
IDIOM is "regard as" Hence its between A\B.

Extent also means "The distance, area or volume over which something extends" Hence airspace can be regarded as Extent updawards... Therefore B.

pradeepkaushal9518 wrote:Most nations regard their airspace as extending upward as high as an aircraft can fly; no specific altitude, however, has been officially recognized as a boundary.
(A) as extending
(B) as the extent
(C) to be an extent
(D) to be an extension
(E) to extend

plz explain

IMO A

IMO A

I have a question. Why do they underline the word upword if that word isn't being changed in any of the different sentence corrections? How do we know for sure here that they wish to keep the word "upword" in this sentence? If "upword" isn't meant to stay in the sentence, then the correct answer would be narrowed down between B and E, because without the word upword, it's still a sentence worth considering. My question basically is how do you recognize what they're trying to do with the sentence immediately? Since the test has a limited time frame...

silencz wrote:I have a question. Why do they underline the word upword if that word isn't being changed in any of the different sentence corrections? How do we know for sure here that they wish to keep the word "upword" in this sentence? If "upword" isn't meant to stay in the sentence, then the correct answer would be narrowed down between B and E, because without the word upword, it's still a sentence worth considering. My question basically is how do you recognize what they're trying to do with the sentence immediately? Since the test has a limited time frame...

I believe you are new to BTG and to the GMAT world. pradeepkaushal9518 mistakenly underlined the word "upward". On GMAT, they underline only the part of the sentence that is given as option A.

oh ok thank you. I just needed that clarification to be sure that they won't do that on the actual GMAT test.

Hi pradeepkaushal9518,
whats the OA?

I also like A. I think 'regard as' is the correct idiom. to describe the airspace as "extending up high" (answer A) makes more sense than to describe it as "the extent high" (B)