Final answer:
The correct answer is social institutions. Religion is an example of a social institution that plays a significant role in society.
Step-by-step explanation:
The correct answer is a) Social institutions.
Organizing activities, replacing members lost, creating culture, transmitting culture to the next generation and immigrants, protecting from internal and external harm, and resolving conflict are all functions of social institutions. Social institutions refer to the established systems and structures that shape the behavior and interaction of individuals within a society. Examples of social institutions include family, education, government, and religion.
In the context of the question, religion can be considered a social institution as it plays a significant role in socializing individuals, transmitting cultural values and practices, and providing a sense of community and identity.