B. By showing that the meatpacking industry did not have high standards of safety and cleanliness.
I believe that is the answer☝......
Seeking their own rights, women used more peaceful tactics but suffered long delays. ... The women's rights movement was the offspring of abolition. Many people actively supported both reforms. Several participants in the 1848 First Women's Rights Convention in Seneca Falls had already labored in the anti-slavery movement.
