Which group primarily provides support for adult children of alcoholics?

The group that primarily provides support for adult children of alcoholics is Al-Anon. Al-Anon is specifically designed to offer help to family members and friends who are affected by someone else's drinking, including adults who grew up in alcoholic households. It focuses on the impact of a loved one's alcoholism on individuals and provides a community where members can share experiences, strength, and hope to cope with the challenges they face.

The other options serve different purposes:

Alateen is specifically for teenagers who are affected by someone else's drinking, focusing on support for younger individuals rather than adults. CoDA, or Codependents Anonymous, is aimed at individuals struggling with codependency issues, which can include but is not limited to the effects of alcohol in relationships. NA, or Narcotics Anonymous, supports individuals recovering from drug addiction rather than focusing on the family dynamics surrounding someone else's substance use.

Thus, Al-Anon is the proper choice as it directly provides support for adults impacted by their childhood experiences with alcoholics.