Final answer:
The basic unit in the Knights of Labor, the Local Assembly, provided the main source of worker solidarity.
Step-by-step explanation:
The Local Assembly, the basic unit in the Knights of Labor provided the main source of worker solidarity.
The Knights of Labor advocated for worker solidarity and believed that labor, rather than capital, were the source of economic development.
They focused on organizing workers and promoting worker rights, including a greater share of profits, control over factories, and improved working conditions.
The basic unit in the Knights of Labor, the Local Assembly, provided the main source of worker solidarity.