confusing Idiom

[selva.e]

Acid rain and snow result from the chemical reactions between industrial emissions of sulfur dioxide and nitrogen oxides with atmospheric water vapor to produce highly corrosive sulfuric and nitric acids.

(A) with atmospheric water vapor to produce highly corrosive sulfuric and nitric acids
(B) with atmospheric water vapor producing highly corrosive sulfuric and nitric acids
(C) and atmospheric water vapor which has produced highly corrosive sulfuric and nitric acids
(D) and atmospheric water vapor which have produced sulfuric and nitric acids which are highly corrosive
(E) and atmospheric water vapor to produce highly corrosive sulfuric and nitric acids

OA is E

i am bit confused with this OA. Because, Acid rain and snow result from chemical reaction between X and Y
to produce highly corrosive sulfuric and nitric acids - will be going for the subject "Acid rain and snow"
which i feel doesn't make proper meaning.

Acid rain and snow to produce highly corrosive sulfuric and nitric acids

[cfaking]

idiom + Modifier issues
http://www.beatthegmat.com/acid-rain-t23417.html

[RonPurewal]

will be going for the subject "Acid rain and snow"
which i feel doesn't make proper meaning.

Acid rain and snow to produce highly corrosive sulfuric and nitric acids

the subject of this sentence is "acid rain and snow".
the verb is "result from..."

the rest is the object of "from". i.e., "reactions between X and Y to form Z" is all one piece.

i don't understand your question here - could you ask the question in more explicit terms, please? thanks