Sonja believes the pill her doctor gave her has cured her of her anxiety disorder, even though the pill contained no active ingredients. Sonja's belief that she is better now is an example of the effect

Placebo

Explanation:

" The idea that your brain can convince your body a fake treatment is the real thing — the so-called placebo effect — and thus stimulate healing has been around for millennia. " - Harvard Health Publishing: The Power of the Placebo Effect

answer; (d) one tectonic plate plunges beneath another; (most common,convergent boundaries)

cannabis

explanation:

(assuming this is the us) google it. law states you can't have weed.