The correct answer is B) Napoleon changing the government leadership in Spain to his brother.
Miguel Hidalgo's "Grito de Dolores" called for Mexico to rise up against the Spanish for independence and racial equality. His timing was largely due to Napoleon changing the government leadership in Spain to his brother.
Hidalgo's "Grito de Dolores" represented the beginning of the Mexican Independence Movement. This event was held in Dolores, Hidalgo, on September 15, 1810. The "Criollos" (Creoles) organized the movement and invited the Native Indians to sum forces to fight against the Spanish troops in New Spain. Other great Mexicans such as José María Morelos y Pavón, Vicente Guerrero, and Agustín de Iturbide participated in the rebellion.