Psychoactive drugs are a class of chemical substances that act on the central nervous system and can alter behavior and cognition. All psychoactive drugs are highly fat-soluble and thus cross the blood-brain barrier readily.

Max is a child with special needs. what is the best way his family can support max? a. place max in an institution that looks after such children b. limit his exposure to the outside world c. provide max with as normal a childhood as possible d. prevent max from mixing with other children with special needs