Swimming can help improve your flexibility, strength and stamina and these three aspects are......" 讲者接下来会讲什么内容？

中国大学MOOC: “Swimming can help improve your flexibility, strength and stamina and these three aspects are......" 讲者接下来会讲什么内容？

A healthy, active lifestyle helps to improve and maintain mental health. Which one of the following is an example of an improvement in mental health? A: Better stamina to keep going. B: More skills to carry out specific physical activities. C: You live longer. D: More able to think positively.