2. She states her position that instructors are justified in requiring students to turn off their phones in the third paragraph and supports it with research findings showing that cell phones are distractions.
3. The conclusion emphasizes the importance of making sure that learning is not compromised. The conclusion works to present a reason why the students should compromise and obey the instructor's rules.
4. The conclusion reinforces agreement because the writer wants students to know why they should follow the instructor's