Sentence Correction

While all states face similar industrial waste problems, the predominating industries and the regulatory environment of the states obviously determines the types and amounts of waste produced, as well as the cost of disposal.

(A) all states face similar industrial waste problems, the predominating industries and the regulatory environment of the states obviously determines
(B) each state faces a similar industrial waste problem, their predominant industries and regulatory environment obviously determine
(C) all states face a similar industrial waste problem; their predominating industries and regulatory environment obviously determines
(D) each state faces similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determines
(E) all states face similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determine

The sentence checks for subject verb agreement .

Subject of the sentence after the comma is predominating industries and the regulatory its a compound subject and requires a plural verb .

If we look closely at answer options only B and E have plural verb DETERMINE so eliminate A, C and D .

(B) each state faces a similar industrial waste problem, their predominant industries and regulatory environment obviously determine

The pronoun THEIR is referring to states which is incorrect since STATE is singular.

Only remaining answer is E .