The senator is a tireless advocate of political reform and genuinely wants to change the system.
Which of the following is the closest in meaning to "advocate" as used in the sentence above?

Question

The senator is a tireless advocate of political reform and genuinely wants to change the system. 
Which of the following is the closest in meaning to "advocate" as used in the sentence above?

Quizplus · Accepted Answer

We can infer from context that the senator is in support of reform and change, so "advocate" must mean "supporter."
Opponent is incorrect. The sentence tells us that the senator wants political reform and change. For this reason, "advocate" would not mean "opponent."
Critic is incorrect. The sentence tells us that the senator wants political reform and change. For this reason, "advocate" would not mean "critic."
Denier is incorrect. The sentence tells us that the senator wants political reform and change. For this reason, "advocate" would not mean "denier."

The Senator Is a Tireless Advocate of Political Reform and Genuinely