Question

on: ____ and poor, working-class citizens were the heart of the mexican revolution.

Explanation:

To solve this fill - in - the - blank question about the Mexican Revolution, we need to recall the historical context of the Mexican Revolution. The Mexican Revolution was a struggle for social and economic justice, and the peasants (or rural poor) along with the poor, working - class citizens were at the heart of it. The word that fits here is "Peasant" (or "Rural" can also be a related term, but "Peasant" is more specific to the context of the Mexican Revolution where the agrarian reform and the plight of the peasantry were major issues).

The Mexican Revolution focused on the rights of the lower classes. Peasants (rural poor) and working - class citizens were central as the revolution aimed at agrarian reform and betterment of the oppressed lower classes. The blank is typically filled with "Peasant" (or a similar term related to rural, poor agricultural workers) as they, along with working - class citizens, were the driving force of the Mexican Revolution.

Answer:

Peasant