Final answer:
Justice Harlan's dissent in Plessy v. Ferguson emphasized constitutional equality for all citizens, while Judge Waring's dissent argued against the inherent inequality of segregation. The correct option is A. Harlan focused on the fact that all citizens are equal under the Constitution. Waring focused on the fact that true equality is not consistent with segregation.
Step-by-step explanation:
The contrast between Justice John Marshall Harlan's and Judge J. Waties Waring's dissents lies principally in their focus and reasoning. Harlan emphasized that all citizens are equal under the Constitution, highlighting the universal equality aspect. On the other hand, Waring pointed out that true equality is incompatible with segregation, speaking to the inherent contradiction of segregation with actual equality. Therefore, the correct answer is A. Harlan focused on the idea that all citizens are equal under the Constitution, while Waring underscored that true equality cannot coexist with segregation.