Your question is a good one, and how you answer it is very important in the process of your job search. New employers are quite attentive on all of your responses, but this one is “interview critical.”
This simple, yet revealing question is a landmine. You should never disparage your last employer for the simple reason that it reflects very poorly no matter what the reason. How you answer this question can make or break your interview. So take a close look at how the answer was written and come up with your own diplomatic, yet personal, answer to this make-or-break question.