Gain Control of Discussion

C.

In this scenario, the instructor needs to regain control of the discussion, which has become off-topic and out of control. To do this, the instructor needs to use a specific type of question that will help guide the discussion back on track.

A. Open questions are ones that allow for a variety of answers and encourage discussion. While open questions are useful for encouraging participation and generating ideas, they are not the best choice for regaining control of a discussion that has gone off track.

B. Clarifying questions are used to gain a better understanding of a statement or concept. While these questions can be helpful in ensuring everyone is on the same page, they are not the best choice for regaining control of a discussion that has gone off track.

C. Closed questions are those that can be answered with a simple "yes" or "no" response. While these questions can be helpful in obtaining specific information, they are not the best choice for regaining control of a discussion that has gone off track.

D. Probing questions are designed to encourage deeper exploration of a topic. They are used to elicit more information and encourage critical thinking. Probing questions are the best choice for regaining control of a discussion that has gone off track. By asking probing questions, the instructor can redirect the conversation back to the original topic and encourage participants to think critically about the issue at hand.

Therefore, the correct answer is D. Probing.