To achieve gains for its members, the Knights of Labor focused primarily on

A) Strikes and boycotts.
B) Violent riots.
C) Sit down strikes.
D) Education and reforming capitalism.

The Knights of Labor believed in education and reforming capitalism as the primary means to achieve gains for its members. They promoted improving the education system to better prepare workers, creating cooperatives and worker-owned businesses, and advocating for legislation to improve working conditions. While strikes and boycotts were sometimes used, they were not the primary focus of the Knights of Labor, and violent riots were strongly discouraged. The idea of sit down strikes was not developed until several years after the decline of the Knights of Labor.