An instructor is almost finished completing a course and has a very dissatisfied learner. Which of the following would be the BEST course of action to help the learner? 

Answer options:

A. Ask other learners if they had issues with the course.
B. Offer the learner a refund on the course,
C. Ask the learner if they had an issue with the course.
D. Invite the learner back to retake the course.

C