Which factor had the most significant impact on the success of the Haitian Revolution?

A) The economic instability of the French Empire during that period.
B) External support from other enslaved populations in the Caribbean.
C) International pressure on France to grant independence.
D) The influence of Enlightenment ideas on the rebel leaders.

D) The influence of Enlightenment ideas on the rebel leaders.

Enlightenment ideas such as liberty, equality, and fraternity heavily influenced the leaders of the Haitian Revolution and inspired them to fight for their freedom and rights. These ideas helped to unify and motivate the rebel forces, ultimately leading to the success of the revolution.