Final answer:
In P.E., students typically play games and should report it to a teacher if someone breaks the rules. Team spirit is important as it helps in winning games by fostering a supportive and cooperative team environment.
Step-by-step explanation:
In Physical Education (P.E.) periods, students typically play games and partake in physical activities designed to improve their fitness, coordination, and understanding of teamwork. Therefore, the answer to the question 'What do you do in your P.E. period?' would be A. Play games.
As for the appropriate response when someone breaks the rules, the ideal action would be to report it to a teacher (C). This maintains order and respects the established guidelines of schools and games. When everyone adheres to the rules, it ensures a fair and enjoyable environment for all participants.
Team spirit is crucial in sports because it creates a supportive atmosphere that can motivate individuals to perform better, leading to better chances of winning games (B). It promotes cooperation, communication, and a positive attitude among members, which are essential components for success in team sports.