Doris: I' ve noticed that everyone involved in student government is outspoken. So if we want students to be more outspoken, we should encourage them to become involved in student government. Zack: Those who are in student government became involved precisely because they are outspoken in the first place. Encouraging others to become involved will do nothing to make them more outspoken. Doris and Zack disagree over whether ['students will not become more outspoken unless they become involved in student government', 'students should be more outspoken', 'becoming involved in student government makes students more outspoken', 'students should be encouraged to become involved in student government']