Answer:
The strengths of excluding other groups gave black people a stronger voice for what they wanted and not what other groups think they wanted. Black people were able to express themselves more comfortably this way. While when other groups were included, they were able to share their opinions and feel included, especially if they supported what black people were doing.
The weaknesses of excluding other groups could have made other minorities (Asian, Native American, etc.) feel as if they were not as worthy of being heard. White people may have felt a certain way about not being able to express and spread their sympathy with the black folk.
Involving everyone was an effective tactic. Even if some people were not black, it let them express their disapproval of segregation and it showed the nation that not all white people were racist and believed the nation should be split.
this looks like a multiple choice question, but the multiple choice answers are not shown, so this is hard to answer
The 15th Amendment to the Constitution granted African American men the right to vote by declaring that the "right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude."