Martin luther king, jr. made a historical speech in 1963. which describes the event? select all that apply.
a. over 200,000 people of all ethnicities gathered at the jefferson memorial to hear him speak.
b. he challenged the imagination of his listeners by offering them hope in the language of "a dream".
c. the passion was so intense that police had to violently disperse the marchers.
d. the crowd heard this: "i have a dream that one day this nation will rise up and live out the true meaning of its creed: "we hold these truths to be self-evident, that all men are created equal."
e. martin luther king was assassinated at the end of his speech.