Jim Crow was the name of the racial caste system which operated primarily, but not exclusively in southern and border states, between 1877 and the mid-1960s. Jim Crow was more than a series of rigid anti-black laws. It was a way of life.
The answer is C The state government sent troops to end it
It's both economic and social. It was used in Medieval Europe. I'd go with social just because of the time period (Kings and Queens, the Monarchs.)