Which statement most accurately reflects current scientific understanding of the genetic factors involved in alcohol use disorders?

• A. Researchers have identified a single "alcoholism gene" that directly causes alcohol use disorder in all individuals who carry it.
• B. Hereditary factors fully account for the development of alcohol use disorders, with no environmental influence.
• C. Genetic factors contribute to alcohol use disorders, but the exact role of specific genes and their interaction with environmental influences remains unclear.
• D. Family history of alcoholism is primarily environmental, with genetics playing a minimal role in determining alcohol use disorders.

Answer: (C)