Bunuel
Congress is responsible
for legislation, and the police is responsible for law reinforcement.
(A) for legislation, and the police is
(B) for legislation, so the police is
(C) for legislation, so the police are
(D) to legislation, and the police is
(E) for legislation, and the police are
OFFICIAL EXPLANATION
Congress is responsible for legislation, and the police is responsible for law reinforcement.(A) for legislation, and the police is
Incorrect.
Is police a singular or a plural subject?
Police is a plural subject. It is something that you must memorize, as there's no logical reason for it.
This creates a disagreement with the SINGULAR verb is.(B) for legislation, so the police is
Police is a plural subject, which creates a disagreement with the singular verb is.(C) for legislation, so the police are
Incorrect.
While this answer corrects the original mistake and is grammatically correct, it changes the meaning of the original sentence by replacing the addition word and with the conclusion word so. Since there is an answer choice that corrects the original mistake without making any further unnecessary changes, it is superior to this answer choice.(D) to legislation, and the police is
Police is a plural subject, which creates a disagreement with the singular verb is.(E) for legislation, and the police are
This answer choice corrects the original Subject Verb Agreement mistake, by changing the singular verb is to the plural verb are, to match the plural subject the police.