The answer is A) May 18, 1896
On May 18, 1896, the Supreme Court issued a 7–1 decision against Plessy that upheld the constitutionality of Louisiana's train car segregation laws.
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Answer:
It was justified because of the hostility and conflict among its many ethnic groups.
Explanation:
The assembly line allowed Ford to sell them cheaper, t made work much faster taking less money to make a car.