Answer:
A project manager should ask open-ended questions when utilizing the following three interpersonal skills:
1. Communication: Open-ended questions allow the project manager to communicate effectively with team members and stakeholders by inviting them to share their thoughts, ideas, and concerns.
2. Active listening: Open-ended questions help the project manager listen actively to team members and stakeholders by giving them the opportunity to express themselves fully.
3. Empathy: Open-ended questions help the project manager to show empathy to team members and stakeholders by understanding their needs, feelings, and perspectives.