SC: Sun's Hydrogen

Question

See attached

Professor · Answer

Choose D but doubt there should be a comma before it. otherwise, E

ps_dahiya · Answer

More important that answer and percentage is Why.

jaynayak · Answer

Will go with E here.

IMO the questions tests comparison.

E correctly compares the process of other stars with that of the process in sun.
IMO d has a modifier problem.

ps_dahiya · Answer

OA is E

Can you explain why D is wrong?

CHEN · Answer

for the sake of "it", "it" is supposed to refer to SUN
because sun'core is not the object that expand itself to red giant.
Conversely, SUN is the object that becomes red giant.
BUT 
D provides that it can only refer to SUN'CORE so D is out.

haas_mba07 · Answer

Answer : E

A/B/C/D modify the Sun with the reference to a star. 

Has to be E.

Professor · Answer

as i mentioned above, a comma was necessary in D. it is also a good example of "sentence fragmant", a case of two IC not connected by a proper conjunction.

old_dream_1976 · Answer

I think the problem with D is 'it'

is 

it = hydrogen 
or 
it = sun ?

also 

active voice is preferred

zoom612 · Answer

Can someone explain the placement of 'would' in choices D and E. 'it' should refer to some noun just preceding it, right ? How do we know what 'it' refers to ? :cry:

sumitsarkar82 · Answer

Why is A wrong here.... Aren't we comparing Any Star to the Sun..

ps_dahiya · Answer

We are comparing how a star of mass similar to that of sun will become a white dwarf. So we have to use "as". Another problem with A is "expansion into red giant" and "ejection of gases" are not happening at the same time. So we can not use "ejecting" we have to use "it will expand into X and (will) eject Y" D is wrong because of the reason given by CHEN. Hope this helps.

GMATT73 · Answer

Late, but scientific theory sentences tend to use the modals (would/could/should). 

The answer here is (E) for multiple reasons:

1) as....as.... comparison of actions
2) as would be the case.....will happen.... is a common hypothetical scientific phenomenon construction
3) proper use of commas

**Let`s just hope this doesn`t happen anytime in the near future :pray

SC: Sun's Hydrogen

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