Questions: Abeni and Kai are visiting Abeni's sibling and their spouse, who recently moved to Italy. During the first day of their visit, Abeni's sibling and their spouse hosted a dinner party to introduce Kai and Abeni to their neighbors. When introduced, Kai extended his arm to shake the neighbor's hand, and instead they reached over and kissed him on each cheek. This happened with each of the introductions during the evening. This type of greeting is an example of a: temperament. natural selection. norm. schema.

The answer is norm.

Temperament refers to the innate traits that influence how one thinks, behaves, and reacts with the environment. It is more about individual personality characteristics rather than social behaviors or customs.

Natural selection is a biological concept that explains how traits that enhance survival and reproduction become more common in successive generations of a population. It is unrelated to social customs or greetings.

A norm is a standard or pattern of social behavior that is typical or expected within a particular society or group. In many European cultures, including Italy, greeting someone with a kiss on each cheek is a social norm, especially in informal or friendly settings.

A schema is a cognitive framework or concept that helps organize and interpret information. While schemas can influence how we perceive social interactions, they are not the interactions themselves. The act of greeting with a kiss on each cheek is not a schema but a social norm.