A white crystalline powder, typically ingested through the nasal cavity, that produces a sense of well-being heightened by alertness and intense feeling of euphoria is

A. PCP PCP is a dissociative anesthetic that causes hallucinations, aggression, and numbness, not typically euphoria or alertness. It is usually smoked, snorted, or taken orally, but is not a white powder by standard appearance. B. Opioid Opioids are generally not white crystalline powders and are associated with euphoria followed by sedation, not heightened alertness. C. cocaine Cocaine is a white, crystalline stimulant powder most often snorted, producing intense euphoria, energy, and alertness. D. none of the other answers is correct Incorrect, because cocaine is the correct answer.