What was the objective of the study presented in the article 'Qualidade nutricional de dietas e estado nutricional de vegetarianos'? Analyze the n...

What was the objective of the study presented in the article 'Qualidade nutricional de dietas e estado nutricional de vegetarianos'?

Analyze the nutritional quality of three types of vegetarian diets and the nutritional status of its practitioners.
Evaluate the impact of vegetarianism on the environment.
Investigate the reasons why people become vegetarians.
a) I and II are correct.
b) I and III are correct.
c) Only I is correct.