Final answer:
Ming-Na is fulfilling a task-oriented role by suggesting a goal for the team, a strategic plan, which contributes to a structured and goal-driven working environment.
Step-by-step explanation:
During a meeting, when Ming-Na suggests submitting a comprehensive strategic plan by the end of the month, she is fulfilling a task-oriented role in the group's dynamics. This role is focused on setting goals, providing direction, and helping the team to define what it should undertake. By articulating a clear objective and deadline, Ming-Na helps in building a structure within which the team can operate. In any collaborative and successful working relationship, understanding how to communicate with your manager and team, setting milestones, and developing teamwork skills are crucial for success. By suggesting a strategic plan, Ming-Na is taking an initiative that aligns with these principles by providing a clear goal for the team to work towards.