Martin luther king, jr., who fought for civil rights of minorities and underrepresented groups, displayed what level of morality according to kohlberg's theory?

I believe the answer is: Postconventional level of morality

Postconventional refers to the level of morality where the sense of morality come from the intention of creating a better moral standard to move the society into progression. Post-conventional level of morality is placed the highest on Kohlberg's theory.