The answer is A. Sandals don't really help with traction and it's a very good way to get like. A tapeworm or something. But yeah the answer is A.
The endcrfain....................................................
You can get brain damage you can also get lung cancer.
Aerobic exercise reduces the risk of many conditions, including obesity, heart disease, high blood pressure, type 2 diabetes, metabolic syndrome, stroke and certain types of cancer. Weight-bearing aerobic exercises, such as walking, help decrease the risk of osteoporosis.