The last and most crucial step in the treatment of alcoholism is rehabilitation. The correct option is C.
Rehabilitation is a process of healing people when the people get back to their normal condition to do their daily normal chores and lead a normal happy life.
Rehabilitation centers are made to heal people suffering from alcoholism, drugs, or depression, or any illness condition. It heals both mental and physical conditions.
It is an important step to treat alcoholism because it provides conditions that help them to cure the addiction and become released from the uncomforted of leaving an addiction.
Thus, the correct option is C. rehabilitation.
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