C. loud noise or music because infection and injury do not occur often and aging wouldn't make any sense.
Usually they start of happy as the person begins to change later on in the relationship
But I am not sure but I think the answer is
C. Happy
You would want to talk to her in the back and use a moderate tone and show her the schedule showing that she was booked for a appointment another day and time. You then tell her that you are sorry for any inconvenience and that you will be expecting her on the right day of her appointment.