Answer: Ethnic Group
Step-by-step explanation:
Ethnic group is one of the type of social category group which is specifically divided on the basis of the their culture, different types of traditions, history, language, religion and the nationality.
In the ethic group the different types of person are participating with their different personalities, cultures and they usually identifying one another on the basis of the above given characteristics.
According to the given scenario, on the basis of the given information about the Ricardo's behavior so he is basically belongs to an ethic group. Therefore, Ethic group is the correct answer.