Why does context matter when studying an author's word choice?

Use words the way they're commonly used." "Word choice often determines whether or not you get your message across. Making poor word choices and not writing appropriately for the audience can distract the reader so much that the message you intended to convey is missed."

Explanation:

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google