Regarding Opioids, Which of the Following Statements Is FALSE

Regarding opioids, which of the following statements is FALSE?

A) Users often liken the rush of heroin to the pleasure of orgasm.
B) Withdrawal from heroin involves severe symptoms.
C) Opioids legitimately prescribed as painkillers, like OxyContin, are often used illegally.
D) Opioids stimulate brain centers that produce pleasurable sensations.
E) Opioids relieve pain while also increasing the activity of the central nervous system.