souvik101990
Like any star of similar mass would do, once the Sun has exhausted the hydrogen in its core, it expands into a red giant, eventually ejecting its outer envelope of gases to become a white dwarf.
oh man..took me 1:47 to get to the answer...tricky one!
let's understand the meaning of the sentence:
Once the Sun's hydrogen in its core is exhausted, THE SUN expands into a red giant, and later it will eject its outer envelope of gases to become a white dwarf.
This scenario is true for any other stars that have a similar mass.
Error analysis:
We see that we need a comparison here - sun is compared with any star of similar mass.
Correct comparison:
Like+noun
AS+clause
Like+clause - is incorrect
As+noun - is not comparison, and has a totally different function.
Present perfect "has exhausted" - suspicious
"it" after core - suspicious, can refer to Sun and core
ejecting - hm, comma before, looks like it should modify the preceding clause, makes sense, but let's check other choices.
(A)
Like any star of similar mass
would do, once the Sun
has exhausted the hydrogen in its core, it expands into a red giant, eventually ejecting
(B) Like any star of similar mass,
once the hydrogen in the Sun's core is exhausted, then
it expands into a red giant and eventually ejects
comparison error - any star of similar mass is compared with once the hydrogen - not correct.
pronoun it - ambiguous, is it referring to hydrogen or core? Sure it doesn't refer to Sun, since Sun's is used as an adjective here that describes the "CORE".
(C) As in the case of any star of similar mass, once the hydrogen in the Sun's core is exhausted,
it will expand into a red giant,
and eventually ejecting
same pronoun error.
comma + and ... hm, strange construction...introduces a new clause, but where is the subject? where is the verb?
(D) As any star of similar mass would,
once the hydrogen in the Sun's core is exhausted
it will expand into a red giant and will eventually eject
comparison error as in B
pronoun error as in B and C
(E) As would be the case with any star of similar mass, once the Sun exhausts the hydrogen in its core, it will expand into a red giant and eventually ejectfirst part of the sentence - for me suspicious, it is not clear what is compared.
pronouns are used correctly, and the sentence tells us the intended meaning.
verbs in the second part of the sentence "will expand" and "eject" are parallel
since other choices are incorrect, this one is the only left