The interviewer is asking this question for a few different reasons. They want to hear how well you handle criticism if you name drop or speak poorly of the one that challenged you and if you seem to hold a grudge over the situation. If you choose to give an example, be sure it allows you to demonstrate your ability to handle criticism with style.

"It is never easy to be criticized or to receive unfavorable feedback. However, I believe that I can learn from each experience and constructively move forward. For example, a physician recently mentioned to me that my notes in the database were not as detailed as she would prefer. I had to take a minute and breathe because I spent extra time on those notes and felt frustrated by the feedback. However, I knew this physician could be tough to please so I asked her to show me exactly how she preferred the notes in the system so that next time, as a team, we could be more efficient."