The correct answer is letter A.
Labor Union is a stable and permanent association of both urban-industrial, rural and service workers, who come together from the realization and resolution of common problems and needs.
These things happened during the time of the Mexican Revolution. General Victoriano Huerta came after the assasination of Madero and Pino Suarez, but before that, Madero and Suarez were pushed to resign in 1913. The ouster of Huerta failed. The failure of Huerta's ouster resulted to a civil war.
He helped win repeal of the Stamp Act
