A teacher is going to award a prize to her most deserving pupil in the current school year. She has narrowed it down to five students and must make her final judgements. She won't give the prize to anyone who has been late to her lessons more than twice. She won't give it to anyone who has failed to complete more than two pieces of homework by the deadline set. After these criteria have been met, the prize will be awarded to the student with the fewest non-A-grade pieces of work.