This photo of school integration shows the outcome of which 20th-century landmark supreme court decision?

Brown v. Board of Education

Explanation:

Brown v. Board of Education of Topeka (1954) is the correct answer because this was the decision that struck down the legality of the "separate but equal" doctrine established by Plessy v. Ferguson in 1896. As a result of Brown v. Board of Education, schools had to be integrated.