The answer is methadone. It is also a form of opioid and used to treat people experiencing extreme pain. it is also used to treat addiction to other opioids. It can give a similar feeling and inhibit withdrawal symptoms. It is generally less potentially harmful than heroin because it blocks the high you get from addictive drugs like codeine, heroin, morphine and etc.
I am pretty sure that the answer is C
Answer: (B) Britain forced China to participate in the opium trade.
and (E) European nations set up competing spheres of influence in China.
Explanation:
