The Nobel Prize in Chemistry was awarder to three scientists

Question

The Nobel Prize in Chemistry was awarder to three scientists for their discovery  that plastic can be made electrically conductive-an advance that has led  to improvements in film, television screens, and windows.

A)that plastic can be made electrically conductive-an advance that has led
B) that plastic can be made electrically conductive-this advance leading
C) that plastic can be made to be electrically conductive, and this advance led
D) of plastic's ability to be made electrically conductiev, with this advance leading
E) of plastic being able to be made electrically conductive-an advance that has led

GMAThopeful · Answer

If it ain't wrong, don't touch it.

in my opinion, the sentence should stay as it is 

So A.

kumarajeet06 · Answer

The Nobel Prize in Chemistry was awarder to three scientists for their discovery that plastic can be made electrically conductive-an advance that has led to improvements in film, television screens, and windows.

A)that plastic can be made electrically conductive-an advance that has led
B) that plastic can be made electrically conductive-this advance leading
 C sounds better than A & B 
C) that plastic can be made to be electrically conductive, and this advance led :  clauses linked by conjunction and so sounds correct 
D) of plastic's ability to be made electrically conductiev, with this advance leading :  changes the meaning of sentence 
E) of plastic  being  able to be made electrically conductive-an advance that has led

nitinneha · Answer

OA is A.

thanks!

Nitin

vinzycoolfire · Answer

Because B Changes the meaning. they got the prize for the discovery. Not because it led to improvement in some thing else.

PTK · Answer

Few words about this SC. 
let us remember what is present perfect tense.

The  present perfect  is a grammatical combination of the present tense and the perfect aspect, used to express  a past event that has  present consequences

In this SC you have to realize that X happened and now this dicovery has present consequences. Now guess what tense should you use ?! good.

based on the above you may cross out all except for A and E. just compare them and find out that E is very wrong using "being able to be".

The Nobel Prize in chemistry was awarded to three scientists for their discovery that plastic can be made electrically conductive—an advance that has led to improvements in film, television screens, and windows.

A. that plastic can be made electrically conductive—an advance that has led  
B. that plastic can be made electrically conductive—this advance  leading   
C. that plastic can be made to be electrically conductive, and this advance  led   
D. of plastic's ability to be made electrically conductive,  with this  advance  leading  
E. of plastic  being able to be  made electrically conductive—an advance that has led

The Nobel Prize in Chemistry was awarder to three scientists

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