Final answer:
Statement A reflects the increased militancy in the 1960s African American community by emphasizing the shift from nonviolent civil rights strategies to a more militant approach, encapsulated by the Black Power Movement led by figures like Stokely Carmichael. (option A)
Step-by-step explanation:
The statement that reflects the increased militancy of some African Americans in the 1960s is A. 'We've been saying 'Freedom' for six years--and we ain't got nothing.' This statement encapsulates the frustration and the shift towards a more militant stance by parts of the African-American community, which was embodied by figures such as Stokely Carmichael who famously coined the term Black Power. The Black Power Movement advocated for self-sufficiency and a more aggressive approach to achieving civil rights, diverging from the nonviolent methods previously championed by leaders like Martin Luther King Jr.
The Black Power Movement came about as a result of disillusionment with the slow progress of the civil rights movement, systemic poverty, and violence against African Americans. Figures like Stokely Carmichael became prominent voices that demanded not only civil rights but also empowerment and strong community-based action. The involvement of organizations like the Deacons for Defense and Justice, who used armed self-defense to protect civil rights activists against white supremacist violence and police repression, also highlighted this shift in tactics.