Answer:
I would say that the answer is d.
Explanation:
"The case went before the U.S. District Court in Kansas, which agreed that public school segregation had a ādetrimental effect upon the colored childrenā and contributed to āa sense of inferiority,ā but still upheld the āseparate but equalā doctrine." provided by https://www.history.com/topics/black-history/brown-v-board-of-education-of-topeka
