Responding to why (A) is not wrong:
Take a look at that first part of the sentence before the comma:
"His campaign for sanitary conditions in operating rooms finally successful"
--notice it is NOT a complete sentence.
So since it is not a complete sentence, it must be a descriptive phrase. What does that descriptive phrase modify?
It modifies Sir Joseph Lister.
We can confirm this with the word "HIS" -which must reference that person.
Cut the fluff and read it like this:
"His campaign finally successful, Sir Joseph did blah blah blah.."
Likewise:
"His GMAT studies finally complete, Abhay went out and partied."--same idea - it's fine.
http://www.gmatpill.com/gmat-practice-t ... stion/3189
Take a look at that first part of the sentence before the comma:
"His campaign for sanitary conditions in operating rooms finally successful"
--notice it is NOT a complete sentence.
So since it is not a complete sentence, it must be a descriptive phrase. What does that descriptive phrase modify?
It modifies Sir Joseph Lister.
We can confirm this with the word "HIS" -which must reference that person.
Cut the fluff and read it like this:
"His campaign finally successful, Sir Joseph did blah blah blah.."
Likewise:
"His GMAT studies finally complete, Abhay went out and partied."--same idea - it's fine.
http://www.gmatpill.com/gmat-practice-t ... stion/3189