Alcoholism might be less likely to occur:

A) if it was used as a rite of passage into adulthood.
B) if the adults drank moderately at family gatherings.
C) if drinking occurred outside of homes, not in them
D) if national abstinence was enforced by law once again.

Moderate drinking at family gatherings can create a healthy attitude towards drinking where it's seen as a social and enjoyable activity, rather than a coping mechanism. This can reduce the likelihood of alcoholism. Using alcohol as a rite of passage or drinking outside of homes do not necessarily prevent alcoholism, and enforcing national abstinence by law is not a viable solution in most societies.