If you receive a question that is important and relevant to the topic you’re presenting but you lack the information needed to answer it, which of the following would be the best response?

a. “I’m sorry; I don’t know the answer.”

b. “You’ve asked an important question, but I don’t have the information needed to answer it properly. I’ll research the issue after we’re finished here today and then send every-one an email message with the answer.”

c. “Let me get back to you on that.”

d. “I’d really like to stay focused on the material that I prepared for this presentation.