Answer:
Option: D. Her childhood and professional experiences with low-income farm workers convinced her that advocacy was necessary.
Step-by-step explanation:
Dolores Huerta is famously known as a labour leader in America. She became an elementary school teacher and saw the poverty of her students, who were children of farmworkers, she got involved in advocacy for agricultural workers and their families. She tried to improve social and economic conditions for workers and to fight discrimination. In 1962 Huerta and with Cesar Chavez co-founded the farmworkers union that would later call as the United Farm Workers.