The answer is D) introversion
Eysenck's model theory of three dimensions of personality include extraversion, neuroticism and psychoticism. They are the higher-order traits in his hierarchy. Personality is reducible to these three major traits.
The answer is D. it will save you money, help your health, and can prevent you from overdrinking since you can't drink something that isn't there. :)
B. The air you breathe.
Because the rest of the choices are not environmental factors. Gang activity, and access to jobs and education are not environmental because environment are things about the world.
