Question

which of these factors may affect a persons blood alcohol concentration? gender race blood type age

Explanation:

Blood alcohol concentration (BAC) can be affected by gender (due to differences in body composition, like fat - water ratio, and enzyme activity between genders) and age (metabolic rates and body composition change with age, affecting alcohol metabolism). Race and blood type do not have a direct impact on BAC. Among the options, gender and age are factors, but if we consider the options given and the most prominent factor often studied, gender is a well - known factor affecting BAC. However, age also affects it. But looking at the options, gender is a valid factor.

Answer:

gender