Children learn the values, norms, and social practices of their culture. this process is defined as:

The correct answer is socialization.

Socialization refers to a development process for children, whereby, they learn appropriate norms, values and cultures of the society they live in. Children receive their primary socialization from their parents, and then through their school, teachers, peer groups etc. Socialization is crucial for children, and helps them grow into productive and functional members of society, 

The holy roman empire.