Final answer:
The three key issues that shaped Marianne's sociological theory are challenging social norms, social dysfunction, and social hierarchy.
Step-by-step explanation:
The three key issues that shaped Marianne's sociological theory are as follows:
- Challenging social norms: Marianne's unconventional ways and her choice not to use money would interest a symbolic interactionist, as it goes against the important symbol of money in the modern world.
- Social dysfunction: A functionalist would consider Marianne's aberration of norms as a social dysfunction that upsets the normal balance of society.
- Social hierarchy: A conflict theorist would place Marianne in the social hierarchy based on her unconventional actions and how they potentially challenge existing power structures.