Answer:
A.) ask the interviewer to please repeat the question
Step-by-step explanation:
I think that this would be the best answer. Improvising could result in the interviewee talking about a topic that wasn't even mentioned, which could give off the impression that they don't have your full attention. The same goes for using a prepared answer to one of the other questions because as I mentioned it may not be related to the question that was initially asked. Lastly, while sitting up straight and keeping eye contact is important, she still missed part of the question that was asked.