which best describes what frances old regime was?\n\nan economic system\nrule by the monarchy\nthe…

Brief Explanations:

The Old Regime in France was a complex system that included social classes (the three estates) and political structures (monarchical rule). It wasn't just about economics (so "an economic system" is wrong). While monarchy was part of it, it was more than just "rule by the monarchy". And "the estates" only refer to the social class aspect, not the full system. The Old Regime combined social (like the estate - based hierarchy) and political (monarchical governance) elements.

Answer:

a social and political system