Fusion, the process through which the sun produces heat and light, has been studied by scientists, some of whom have attempted to mimic the process in their laboratories by blasting a container of liquid solvent with strong ultrasonic vibrations.


a.Fusion, the process through which the sun produces heat and light, has been studied by scientists,
b.Fusion, the heat and light produced by the sun, has been studied by scientists,
c.Fusion, the process through which heat and light are produced by the sun, has been studied by scientists,
d.Scientists have studied fusion, the process the sun uses to produce heat and light,
e.Scientists have studied fusion, the process the sun uses to produce heat and light, and

Can someone explain why D would be wrong?
_________________

Verbal:new-to-the-verbal-forum-please-read-this-first-77546.html
Math: new-to-the-math-forum-please-read-this-first-77764.html
Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html
-------------------------------------------------------------------------------------------------
Ajit

..fusion, the process the sun uses to produce heat and light, some of whom have attempted..

firstly, 'the process the sun uses' lacks the connecting 'through which'
secondly, 'heat and light, some of whom have attempted' .. how can heat and light attempt something?

HTH

_________________

press kudos, if you like the explanation, appreciate the effort or encourage people to respond.

Download the Ultimate SC Flashcards

@ Ajit: even A uses ‘which’. Once you know why something is wrong, why do you wan to look beyond that and unnecessarily waste your valuable time in the test?
_________________

” I truly believe in online learning, I have been a student in both an Ivy League school (brick and mortar) and in an online setting and I have learned 1,000 times more in an online setting. You do not have anyone there lecturing you and then you do the work, online you are made to do it all yourself. Amazing how different the results are. - Heather(a student)”

Alicia Helle, an online student at the UW, "Obtaining my degree online has been a blessing. With two small children, I am able to work when it is convenient for my family and me. I have nothing but positive comments and experiences from my time at UW-Stout.”

Find out what's new at GMAT Club - latest features and updates

thanks metallicafan.....thats what i wanted to know (active is preferred to passive).
_________________

Verbal:new-to-the-verbal-forum-please-read-this-first-77546.html
Math: new-to-the-math-forum-please-read-this-first-77764.html
Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html
-------------------------------------------------------------------------------------------------
Ajit

D some of whom modifier is placed far from scientists.

A is better.
_________________

Visit -- http://www.sustainable-sphere.com/
Promote Green Business,Sustainable Living and Green Earth !!

A is better than C( active vs passive)
IMO A.
_________________

Fire the final bullet only when you are constantly hitting the Bull's eye, till then KEEP PRACTICING.

A WAY TO INCREASE FROM QUANT 35-40 TO 47 : a-way-to-increase-from-q35-40-to-q-138750.html

Q 47/48 To Q 50 + the-final-climb-quest-for-q-50-from-q47-129441.html#p1064367

Three good RC strategies three-different-strategies-for-attacking-rc-127287.html

Can there be choices on GMAT which would differ only between passive and active voice?
_________________

hope is a good thing, maybe the best of things. And no good thing ever dies.

Who says you need a 700 ?Check this out : http://gmatclub.com/forum/who-says-you-need-a-149706.html#p1201595

My GMAT Journey : end-of-my-gmat-journey-149328.html#p1198742