When the Mexican Revolution erupted in 1910, it promised ____________.

The correct answer highlights that the Mexican Revolution in 1910 was primarily aimed at providing hope to Mexicans who were enduring poverty and facing the repressive actions of officials. The revolution arose in response to a long-standing struggle against social injustice and economic inequality prevalent in Mexico at the time, characterized by a regime that favored the wealthy and oppressed the lower classes.

This movement inspired hopes for significant socio-economic reforms, including land redistribution and improved workers' rights, which were crucial for those Mexicans who had been marginalized and exploited. The focus on Mexicans suffering from these specific injustices directly aligns with the context and the promises that the revolution held, making it the most accurate portrayal of the intentions behind the uprising.

Although other options mention different locations and people, they do not accurately reflect the core target audience and conditions that the Mexican Revolution aimed to address. Therefore, option A encapsulates the essence of the expectation tied to the revolutionary movement effectively.