Trap question. Never state anything negative! Say that you can’t think of any criticisms you have received from colleagues on the job. Of course, there have been areas for development—such as when your supervisors would have given you your “employee review,” and they might have made a suggestion for improvement. State that you have always taken these kinds of suggestions seriously, and have taken steps to make the improvements that were requested, and that this has made you stronger as a professional. (State at least one example).