Final answer:
The true statement about ethnic differences in alcohol use is that socioeconomic and environmental factors influence these differences across various ethnic groups.
Step-by-step explanation:
Among the statements provided regarding ethnic differences in alcohol use, the one that is TRUE is that socioeconomic and environmental factors influence ethnic differences in alcohol use. Evidence has consistently shown that factors such as employment status, level of education, social networks, and the environment one lives in can significantly affect drinking patterns across different ethnic groups. For instance, the stress associated with higher unemployment rates among African-Americans may have a different impact on alcohol consumption compared to other ethnic groups. Furthermore, cultural norms, accessibility, and historical contexts can also influence rates of alcohol consumption and abstention within different ethnic communities.