A trainer is in the middle of making a point with difficult material when a learner asks a question that is slightly off-topic. Which of the following is the BEST course of action for the trainer to take?
A. Answer the question immediately so it will not hang in the background distracting others
B. Inform the student that it is an off-topic question and has no place within the material
C. Redirect the question to another learner so their knowledge can be shared with the class
D. Defer the question, promising to get back to it as soon as is reasonable
