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.



(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


(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


(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


(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 eject


We use “like” to compare two nouns 

For ex- Like any star, the Sun is….


In the given sentence, we should use “as” and not “like” because the comparison is between two clauses. Eliminate A and B.


CIncorrect Comparison- As in the case of any star of similar mass, “once the hydrogen in the Sun’s core is exhausted” is incorrect. The comparison is between “stars” and “the Sun”. Option C incorrectly compares “stars” with “ hydrogen in the Sun’s crore”. 

Incorrect parallelism- It will expand and ejecting - incorrect. Eliminate C


D- commits the same error as option C- incorrectly compares “stars” with “ hydrogen in the Sun’s crore”. Eliminate.


E- correct.


Correct use of “as” to compare two clauses

Correct use of Comparisons- Stars are compared to Sun.

Correct parallel structure- It will expand and eject..