Comprehensive Reviews of the Research Literature Regarding Treatment of Alcoholism

Comprehensive reviews of the research literature regarding treatment of alcoholism and drug abuse tell us that

A) in-patient treatment is more effective than out-patient treatment.
B) professional treatment is more effective than self-help approaches such as AA.
C) treatment aimed at reducing alcohol or drug use is more effective than treatment aimed at total abstinence.
D) there is little evidence to suggest that one form of treatment is more effective than another.