Attendance
Professional Attitude and Appearance
Honesty
Safety
Customer Satisfaction
Personally, I think they are all of equal importance and could not rank one above the rest. They can also be bad. For example:
Attendance means nothing if you show up every day yet do not do your job correctly.
Professional Attitide and Appearance means nothing if it is all for show. Plenty of good looking, well spoken slugs out there.
Honesty can be a double edged sword. "Yes, Mr. customer, our product is inferior."
Safety is important. An honest person may turn in his company for safety violations.
Customer Satisfaction. Give away the store for a fifty cent mistake.
Its a trick question designed by someone that just enjoys seeing people sweat.