Why was emiliano zapata and pancho villa important to the mexican revolution?

One major result of the revolution was the dissolution of the federal army in 1914, which francisco madero had kept intact when he was elected in 1911 & general huerta used to oust madero. revolutionary forces unified against huerta's reactionary regime defeated the federal forces. Hope This Helps!

Ithink the answer is d but don’t answer it. i need points.