What was the subject of the louisiana laws upheld by plessy v. ferguson? a. grandfather clauses b. poll taxes c. separate rail facilities d. women’s suffrage e. peaceful protest

C. separate rail facilities

Explanation:

The question was about the segregation of the toilet facilities abord trains.  The judgement forced the rail companies to offer the same treatment and facilities in "colored" train cars as in the "white" train cars of the same class, following the "separate but equal" principle.

That means that each car of a given class should have the same features and amenities, no matter if it was a car designated for white passengers or for "non-white"/"colored" passengers.

C. separate rail facilities

Explanation:

Sorry I am one year late! Hope this helps others!

i believe it was ccc - civilian conservation corps