Final answer:
Angie's family is a primary group, characterized by long-term, emotional bonds and significant influence on behavior and socialization.
Step-by-step explanation:
Angie's family, where she experiences long-term emotional engagements and obtains significant emotional support, represents a primary group. Primary groups, as sociologist Charles Horton Cooley defined, are small and made up of individuals who engage in face-to-face interactions over an extended period. These groups serve emotional needs and consist of significant others like family members. Angie's relationship with her parents and brothers, characterized by close ties and significant influence over her behavior and socialization, confirms that her family is indeed a primary group.
A secondary group, by contrast, is usually larger, task-oriented, and less personal. Groups such as classrooms or work teams are examples of secondary groups. Since the family is traditionally the best example of a primary group, the answer to the student's question is A. primary group.