what is wrong with A (1000SC, #25)

[persevering]

A recent study of ancient clay deposits has provided new evidence supporting the theory of global forest fires ignited by a meteorite impact that contributed to the extinction of the dinosaurs and many other creatures some 65 million years ago.[/b]

[jayhawk2001]

"Theory of" is not correct in (A). "Theory that" is preferred.

I guess it would be easier to explain this question with all the answer
choices.

(A) supporting the theory of global forest fires ignited by a meteorite impact that
(B) supporting the theory that global forest fires ignited by a meteorite impact
(C) that supports the theory of global forest fires that were ignited by a meteorite impact and that
(D) in support of the theory that global forest fires were ignited by a meteorite impact and that
(E) of support for the theory of a meteorite impact that ignited global forest fires and

Using the 2/3 principle, you can eliminate A, C and E.

D changes the meaning.

[pavitkumar]

Hey jayhawk2001, although i got the reason why I selected B but can you please explain a little, the 2/3 split as I couldn't figure out the split.

Thanks!!

[Jim@Grockit]

Hey jayhawk2001, although i got the reason why I selected B but can you please explain a little, the 2/3 split as I couldn't figure out the split.

Thanks!!

A, C, and E all have "theory of", which you would only see in phrases like "Einstein's Theory of Relativity". That is the split referred to.