Why? -- Proof, why and how does the alternative and complementary medicine work in terms of current understanding of medicine/anatomy/science
advantages to skepticism, reduction of people getting conned into paying into a false medical treatment
disadvantage to skepticism, the particular alternative treatment may actually work however the exact mechanism is not yet known and may be dismissed as psuedo-science
The best surface to run on?
the answer is b: smooth and soft so that it can cushion the stresses of running
I think it’s the first answer!