The most important long-term impact of Socrates was o
A his training of the philosopher Plato.
B.
the criminal activity that led to his death sentence.
C
his encouragement of good citizenship.
o o
D. his promotion of critical thinking and reason.

his promotion of critical thinking and reason.

Explanation:

thurgood marshall

explanation: in 1954, thurgood marshall and a team of naacp attorneys won brown v. board of education of topeka, kansas. in this landmark decision, the supreme court held that segregation in public education violated the equal protection clause of the fourteenth amendment.