Question

the supreme court supported jim crow laws through decisions like the one in the 1896 case of—
miranda v. arizona.
schenck v. united states.
plessy v. ferguson.
brown v. board of education of topeka.

Explanation:

Plessy v. Ferguson (1896) was the Supreme Court decision that upheld the "separate but equal" doctrine, which legally supported the Jim Crow system of racial segregation. The other cases: Miranda v. Arizona established Miranda rights for suspects, Schenck v. United States focused on free speech during wartime, and Brown v. Board of Education (1954) overturned the "separate but equal" ruling from Plessy v. Ferguson.

Answer:

Plessy v. Ferguson.