Answer:
d. that many African Americans had become impatient with King's cautious approach
Step-by-step explanation:
During the 1960's, several civil rights movements fought for Afro-American people's rights in the United States due to the high level of racism, discrimination, and segregation that Afro-American people had to face. Malcolm X was a leader of the movement Nation of Islam, he fiercely denounced the crimes that white Americans had committed against Afro-Americans and his opinions were labeled as extremist by his detractors. Black Panthers was a black nationalist, socialist, and revolutionary organization that defied police brutality in the United States against Afro-Americans. All these organizations adhere to the ideology known as Black Power. This movement went further than the movement led by Martin Luther King, which was more cautious in the fight for the freedom and rights of Afro-Americans. This fact showed that African Americans had become impatient with this cautious approach and wanted to get real results from this social struggle for their rights.