Answer:
<h3>A. Quackery</h3>
Explanation:
Quackery is practicing medicine, or other accredited health professions by a dishonest or an incompetent person with little or no professional preparation to do what he claims he can do.
A person who promotes or sells health product or service that is unproven or ineffective is describing as quack.
Quackery is a type of medical fraud that plays on human emotion, weakness, and fear.
So, the correct answer is "A. quackery".
I can't give three ways but one way I have learned is to use "I" statements.
Use: "I feel uncomfortable doing this."
Instead of: "You guys are dumb and this is dumb."