Why is marta so angry and why does she want to go on strike from the book Esperanza Rising?

Marta is angry because she feels oppressed and mistreated by the conditions of her work on the farm as a laborer. She wants to go on strike to demand fair treatment, better wages, and improved working conditions for herself and her fellow workers. Her anger is fueled by a desire for justice and equality in the face of injustice and exploitation.