Which best explains why many african americans had not registered to vote by the 1960s

They were intimidated by violent threats and actions

it is correct because it seems best of all to e

hope it helps

they were discriminated against the right to vote until the Civil War takes place and prohibited the states to denying the male citizens to exercise the right to vote. nevertheless, african american people were submissed to violent fights in order no to continuing protesting agains the right to vote

Explanation:

the deaths of over a million communist soldiers

post-traumatic stress disorder in veterans