Which of these drugs has no accepted medical use and has the highest potential for abuse?

Question

Quizplus · Accepted Answer

Heroin is a Schedule I drug ("illegal"),has no acceptable medical use,has the highest potential for abuse,and cannot be prescribed.
Morphine is a Schedule II drug and has acceptable medical use.
Valium is a Schedule III drug and has acceptable medical use.
Marijuana is controversial and has acceptable medical use in some states,but it does not have the highest potential for abuse.

Which of These Drugs Has No Accepted Medical Use and Has