1. desire to participate in an activity that requires a lot of stamina
2. desire to participate in a high-energy activity
3. desire to participate in a joint-friendly activity
4. desire to participate in an activity that requires considerable focus

Answer: – Walking is a great exercise for persons who 3. Desire to participate in a joint-friendly activity

Explanation:  The correct answer is B. (I just used common sense) If they think about it, why not walk to help their joints adjust, especially if they are going to participate in a sport or activity that is gentle on their joints? For example, according to the education in Arthritis Care & Research, investigators discovered that frivolous running will not destroy their knees. Walking has less impact—a ground response force is around 1.2 times their body weight—and is therefore better for your joints.

The Surgeon General recommends 30 minutes of moderate-intensity exercise most days of the week. The good news is that their daily activity counts and can be accumulated (for example, three 10-minute walks spread out throughout the day) to produce real health benefits.