Selma March and “Freedom Summer”(1964)

Southern state legislatures had passed and maintained a series of discriminatory requirements and practices that had disenfranchised most of the millions of African Americans across the South throughout the 20th century

Explanation:

i beleive a. is the only possible answer

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..