Answer: C.separate rail facilities
Explanation: the answer is C.separate rail facilities because In Plessy v. Ferguson, the principal matter revolves through a tipical racial segregation where you can find that banned the African American citizens from using the Same facility as the White citizens, so we have to keep in mind the years where this happen, also is extremely important in specific the use of rail facilities. also At that time the supreme court ruled in favour of racial segregation.
at that time all people think you can use all the people who were not white as a machine, or something similar.
