An outpatient surgery center, or a clinic that specializes in endoscopy. Possibly a digestive disease facility.
You just do it. Think about the result afterwards...
You shoud eat 3 to 5 grams of carbs per pound of body weight
The answer is C. Glue. Heroin is injected, smoked which doesn't show the person inhaling Heroin. Ecstasy are pills and you do not breathe this in. Glue is used by drug-users to sniff which is also called glue-sniffing so this is an inhalant as it involves breathing in the substance.
Psychoanalysis is the answer.