If your knees hurt after a one-week walking regimen ,which one of the following workout changes would be most appropriate? a. jog in a swimming pool. b. switch to anaerobic exercise. c. take a week's rest from exercise. d. wear different shoes.

Letter C. Take a week's rest from exercise. After a week of walking regimen it is normal for your knees to hurt it would be better if you rest for a while not likely for a week but for a day or two, the pain from the knees will soon be gone after a short rest, but I think it won't last a week.

Maybe meditation,stress relievers,try to have quite time try to get school done on time and try to go to bed earlier