Who invented the process for granulating sugar and was the first appointed mayor of New Orleans?

Etienne de Bore is recognized for his significant contributions to the sugar industry in Louisiana, particularly for developing the process for granulating sugar in 1795. This innovation was crucial for transforming sugar production in the region, which became a central aspect of New Orleans' economy and culture.

In addition to his advancements in sugar production, Etienne de Bore also holds the distinction of being the first appointed mayor of New Orleans. His leadership and entrepreneurial spirit helped shape the city during its early years of growth.

The other individuals listed played important roles in various capacities, but it is Etienne de Bore who is specifically associated with both the granulation of sugar and the mayoral position in New Orleans, making him the correct answer to the question.