True or false: Methadone maintenance is controversial partly because methadone can be addictive and produce withdrawal symptoms.

• A. True — methadone can be addictive and produce withdrawal.
• B.  False — methadone never causes withdrawal.
• C. False — controversy is only about cost and not addiction.
• D. True — methadone causes no dependence but is controversial for other reasons.

Answer: (A)