A concern for many Northern Republicans under President Johnson’s Reconstruction Plan was that – a former Confederate leaders were elected to Congress

b Southern voters swore loyalty to the United States

c New state constitutions had to be adopted

yes

explanation:

the fighting words doctrine, in united states constitutional law, is a limitation to freedom of speech as protected by the first amendment to the united states constitution. in 1942, the u.s. supreme court established the doctrine by a 9–0 decision in chaplinsky v. new hampshire.

the structure was most likely used for;

c. playing a ball game with stone hoops