A lead tweets out that your latest offer is “completely lame.” What do you do?

A lead tweets out that your latest offer is “completely lame.” What do you do?
  A)  Completely ignore the tweet.
  B)  Tweet back an apology and send them a free t-shirt in the mail.
  C)  Apologize and ask for a more detailed response via email so that you can do better job next time.
  D)  Send them a direct message with an apology so as to not cast your business in a negaive light on your public Twitter feed.