I have no idea but i think it could be a
reasons : French National Convention had recently freed all slaves, while Spain and Britain refused, and that he had become a republican.
governor of Saint-Domingue, Étienne Laveaux, made Toussaint lieutenant governor; the British suffered severe reverses; and the Spaniards were expelled.
Britannica
C. would be the answer to this question hope this helps you out
