The Mexican Revolution was fundamentally a conflict between
a. Conservative landowners and landless peasants
b. Mexican business interests and foreign investors
c. Supporters of Emiliano Zapata and supporters of Pancho Villa
d. Supporters of the Catholic church and anti-cleric revolutionaries
It could be argued that the Mexican Revolution was fundamentally a conflict between "a. Conservative landowners and landless peasants," since it was impossible for these peasants to have any type of upward mobility.
