范例5 Group exercise is one of the most effective ways to improve physical fitness and sustain(保持)a healthy lifestyle. Group exercise is challenge, yet fun and empowering! Of course everyone knows that exercise is good for the body. However, studies have shown that when exercise is performed in groups, it’s not only great for improving physical health but for psychological health. It’s an opportunity to be social, release endorphins(内啡肽),and improve your strength. What would be the best title for the passage? ________ A. Seeking Support B. Supporting Health C. Improving Your Strength D. Building Up Fitness