Which assessment findings are likely for an individual who recently injected heroin?

A. Heroin is an opioid, which causes central nervous system depression, leading to drowsiness, miosis (pinpoint pupils), and slurred speech. B. These are more typical of stimulant use such as cocaine or methamphetamine, not heroin. C. These are withdrawal symptoms of opioids, not effects immediately following injection. D. These are associated with stimulant intoxication or withdrawal, not opioid intoxication.