Nduvho has just taken a drug. He finds that his perceptions are altered and he feels like his sensory awareness has increased. It is most likely that Nduvho has taken

A) LSD or mescaline.
B) morphine or heroin.
C) barbiturates or Quaaludes.
D) cocaine or amphetamines.

LSD and mescaline are hallucinogens that can cause altered perceptions and heightened sensory awareness. Morphine and heroin are opioids that primarily affect the body's pain receptors, barbiturates and Quaaludes are depressants that can cause sedation and drowsiness, and cocaine and amphetamines are stimulants that can increase energy and concentration, but do not typically increase sensory awareness.