Answer:
Under Johnson's Plan the South have to accept:
the 13th Amendment (abolish slavery).
in order to rejoin the Union
Step-by-step explanation:
To understand this answer we need to remember a few things. First of all, not even Johnson wanted to give land to the former slaves. So the last option incorrect. Second, they did manage to get representatives in congress that would motivate them to rebel in the future. So, they got them. Third, they had to give the right to vote to former slaves as well as to accept the abolishment of slavery.