galileo did not invent

[iamtheone]

galileo did not invent the telescope, but on hearing, in 1609, that such an instrument had been made, he quickly built his own device from an organ pipe and spectacle lenses

a.galileo did not invent the telescope, but on hearing, in 1609, that such an instrument had been made, he

b.galileo had not invented the telescope, but when he heard, in 1609, of such an instrument having been made,

c.galileo, even though he had not nvented the telescope, on hearing in 1609, that such an instrument had been made, he

d.even though galileo did not invent the telescope, on hearing, in 1609, that such an instrument had been made,

e. even though galileo did not invent the telescope, but when he heard, in 1609,of such an instrument being made, he

 

whats right and why??:hmm:

[asdada1]

D for me, let me know if correct and I shall explain

[iamtheone]

the OA is (a)

any clues why? plz help!

[bellcurve]

b. "Had not" is wrong.

C. It should be either Galileo built... or he built. If you take the middle things out, C would say Galileo,he built and it is not right.

d. No subject. Even though.... quickly built.

e. even though and but are redundent. We just need one of those.

 

Elimination leads us to A.

[GmatRup]

yah iam also with A

[rnbp9]

IMO A

 

B out: past perfect in first part not necessary; "to hear OF" unidiomatic

C,D,E out: Even though introduces sentence fragments....although usually introduces a subordinate clause which has a subject + verb

[livewithpassion]

by POE i chose A.