Explanation:
John Lewis became devoted to pursuing his personal educational objectives and prosperity for his country. He coincided to Dr. Martin Luther King, Jr., who vowed to pursue the civil rights movement after being motivated by his instance in the Bus boycott.
Answer A makes sense for me
the other sentence is B therefore
because therefore means so
my teacher was very ill therefore (so) a substitute was called to finish the day
The word that you are missing is MUCH.
Answer:
March on Washington
Explanation:
see https://www.history.com/topics/civil-rights-movement/i-have-a-dream-speech