Why did president johnson deviate from his original plan of punishing southern aristocrats by making it difficult for states to reenter the union?
a) johnson lost interest in the issue of reconstruction upon lincoln's assassination.
b) johnson became more interested in the passage of the thirteenth through fifteenth amendments.
c)johnson believed that the union was paramount and the south should be represented.
d) johnson did not believe southern landowners had done anything wrong leading up to the war.
e)johnson wanted to show his authority by passing the civil rights bill of 1866, and needed the south to do it.

President Johnson deviated from his original plan of punishing the Southern Aristocrats by making it difficult for states to reenter the Union because he believed that the Union was paramount and the South should be represented (c). 
Andrew Johnson was elected as Abraham Lincoln's vice president. He became president on the night Lincoln was assassinated. He was elected as Lincoln's vice president as he was pro-South and this was seen as a gesture of unity. At the outbreak of the civil war, Johnson was the only senator from a southern state that remained loyal to the Union

It should be C) Johnson believed that the union was paramount and the south should be represented. Correct me if I’m wrong.

Avery Thompson was a suspect who was not proven to be the criminal. So until and unless the police had a clear evidence they can not arrest Avery and put him in prison. They can investigate the case and question him in the presence of a lawyer.