Final answer:
A multi-day/multi-judged show may not exceed seven hours per day from the start to the end of the judge's last class, ensuring a standard duration for such events.
Step-by-step explanation:
The rule for a multi-day/multi-judged show states that the show may not exceed a certain number of hours per day. The options provided suggest different limits on the number of hours a judge can be engaged in a show per day. The correct answer to this question is that the duration of a multi-day/multi-judged show is at most seven hours per day from the judge's actual starting time to the conclusion of his/her last class. This ensures that the judges and participants do not endure excessively long days and that there is a standard for the duration of the shows.