Read this excerpt about activist Dolores Huerta.

Throughout the twentieth century, strikes and efforts to unionize migrant workers had failed to achieve real change. But the civic activism that swept through America after World War II stirred the Mexican-American community, including Huerta’s family.

In 1955, along with her mother and an aunt, Huerta became involved in grassroots organizing as a member of the Community Service Organization (CSO). She honed her organizing skills and became a lobbyist in Sacramento, helping set up voter registration drives and fighting for the legal rights of migrant workers.

Which statement is the best summary of this excerpt?

Dolores Huerta was an organizer during World War II who tried to change the migrant workers in California.
Dolores Huerta was a member of the Community Service Organization and a registered voter.
Dolores Huerta was part of the Mexican-American community and worked with her family in Sacramento.
Dolores Huerta was a hands-on leader whose goal was to improve working conditions for migrant farm workers