The correct answer is Twenty states passed laws that enacted segregation laws.
These laws that created segregated public facilities like schools, bus stops, parks, water fountains, etc. were called Jim Crow Laws. These laws were passed throughout the United States with the goal of keeping blacks and whites separated. These laws would result in the continued treatment of African Americans as second class citizens. Many of these laws would not be repealed until the Civil Rights movement of the 1950's and 1960's.