Final answer:
The National Convention's 1792 decree reflected principles of egalitarianism, popular sovereignty, and the abolition of feudal privileges, indicating a shift towards a society based on Enlightenment ideals where all citizens are equal in rights.
Step-by-step explanation:
According to the 1792 decree of the French National Convention, the principles most clearly reflected in their approach to governance were those of egalitarianism, popular sovereignty, and the abolition of feudal privileges. The decree emphasized the importance of sovereignty of the people, indicating a shift away from monarchical power. The declaration of the abolition of all civil and military authorities, taxes, and particularly the abolition of the tithe, feudalism, seigniorial rights, and all forms of contributions pointed to a significant transformation towards egalitarian principles, implicitly derived from the Enlightenment ideals that influenced the French Revolution. These changes were aimed at creating a society where all citizens were equal in rights and responsibilities, a clear departure from the Ancien Régime's hierarchies and inequalities.