A writer is checking the effectiveness of the following draft. A campus mental-health program prepared guidance for peer listeners. Volunteers are trained to hear concerns, ask whether someone is safe, and connect the person with professional services when needed. The guide should define the volunteer role without suggesting that peers provide no support or using a dismissive comparison with doctors. Examine the bracketed portion of the next sentence. The guide [encourages volunteers to listen without diagnosing]. Which choice best maintains the guide's concise and appropriately bounded description of the role?