Which technique is Ramy most clearly using in the following discussion?

The right answer is C). Ramy is challenging Charlotte to reconsider her assumption.
Answer:
C. Challenging an assumption
Explanation:
Ramy knows Charlotte's point of view on a particular subject, but he wants her to reflect on and rethink the conclusions she has made about the subject. For this reason, Ramy makes a questioning that forces Charlotte to rethink her assumptions and eventually arrive at another conclusion on the subject