Compared with those who do not participate in diving, people who often participate in diving are generally healthier. It can be seen that diving can exercise and improve physical health. Which of the following most powerfully challenges the above argument? ['No matter who participates in diving, it is to exercise and improve health.', 'There are many ways to exercise and improve health, for example, participating in long-distance running, ball activities, swimming, etc. can exercise and improve health.', 'Diving is a very dangerous sport. Every year, some people are injured in diving sports, and even some people are seriously injured.', 'Most people with poor health will not participate in some dangerous diving sports.']