Which pronoun agrees with the antecedent in the sentence?

all of the paint is still in container.

a. their
b. theirs
c. its
d. it's

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.

i think that the answer is polishing peanuts