The patterns of behavior that are expected of people in different age cohorts are called:

A) age roles
B) generations
C) age cohorts
D) life stages
E) life courses

Age Cohorts

Groups of people defined by their age, often used in studies to understand generational differences in behavior and attitudes.

Behavior Patterns

Regularly observed actions or reactions that are characteristic of an individual or group, often influenced by society's norms and values.