Respuesta :
Answer:
the Birmingham church bombing that killed four little girls
Explanation:
The event of bombing of the Birmingham church that killed four little girls signalled the need for change after the March on Washington.
What is the March on Washington?
It was a protest organized by 250,000 people who gathered in Washington to draw attention to continuing challenges and inequalities faced by the African Americans.
The goal of the March on Washington was to demand legal equality for African Americans.
Therefore, the Option D is correct.
Read more about March on Washington
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