Answer:
Options A, and D.
Step-by-step explanation:
Your answers are A and D "Many Americans were sickened by what they saw on television, and more than twenty thousand people joined the final, successful Selma to Montgomery march to show they supported the civil rights movement." Television greatly assisted with making Americans more aware of the disturbing things events that were taking place in Selma, Americans were disgusted with the actions of policemen which caused over 20 thousand people to move to Selma to help join the protests.
Hope this helps.