Final answer:
In problem-based learning, the role of the instructor is that of a Facilitator, providing support and guiding students to their own understanding rather than simply lecturing or leading directly.
Step-by-step explanation:
In problem-based learning, the traditional role of an instructor is transformed from that of a lecturer or leader to a more supportive and guidance-oriented position. The correct role of the instructor in this context is that of D) Facilitator. A facilitator is crucial in creating a learning environment where students are encouraged to explore, discuss, and understand problems more deeply, rather than simply receiving information passively. Instructors guide students towards their own learning, helping them develop the skills they need to find solutions and understand concepts. This involves a range of responsibilities, such as being an empathetic listener and understanding the context within which the learning takes place to avoid cultural misunderstandings or ineffective interventions. The role of the instructor as a facilitator is to harness their knowledge and experience to guide students through the learning process, rather than directly providing them with the answers.