Question

n 1892, homer plessy was arrested for
sitting in a \whites only\
movie theater.
appealing a court decision
about segregation.
attempting to vote in an
election.
sitting in a \whites only\ rail
car.

Explanation:

Homer Plessy's arrest in 1892 was related to the segregation laws. He deliberately sat in a "whites only" rail car to challenge the Louisiana Separate Car Act, which led to his arrest. The other options are incorrect: he was not arrested for a movie theater incident, appealing a court decision (he was arrested before the court appeal process related to his case), or attempting to vote (his case was about transportation segregation, not voting rights).

Answer:

sitting in a "whites only" rail car.