The correct answer is personality traits
Personality traits are the characteristics that allow us to create an exhaustive description of the person, therefore, they allow us to distinguish one person from another. These traits make people act more or less in accordance with them, that is, a person with a certain personality trait, must act in a manner consistent with that trait.
It is very important to take into account that personality traits do not follow the dichotomous idea of everything or nothing, but that people can have a certain degree of a trait (high, medium, low, very, little). In other words, people show personality traits in different measures.