Questions: In upholding Louisiana's Separate Car Act, the Supreme Court claimed that segregation was not the same as discrimination.

The answer is segregation was not the same as discrimination.

This option reflects the Supreme Court's decision in the case of Plessy v. Ferguson (1896). The Court upheld the constitutionality of racial segregation under the "separate but equal" doctrine, arguing that segregation did not in itself constitute unlawful discrimination.

This option is incorrect. The Fourteenth Amendment applies to all states, including Southern states. The Supreme Court did not claim that the Fourteenth Amendment was inapplicable to any specific region.

This option is not accurate. The Supreme Court did not justify segregation on the grounds of maintaining public order. Instead, the decision was based on the interpretation that segregation did not imply the inferiority of African Americans.

This option is incorrect. The Supreme Court did not find segregation unconstitutional in this case. Instead, it upheld the constitutionality of segregation under the "separate but equal" doctrine.