The correct answer would be C, because he’s describing basically the whole Rosa Parks ordeal. The buses were segregated at his time and coloured people didn’t have the rights like the others did.
Homer Plessy "<span>a. Sat on a railroad car designated for Whites," which the Supreme Court ruled as illegal in the case "Plessy vs. Ferguson," since this case upheld "separate but equal policies" in the US. </span>