The correct answer is A. pardon.
An amnesty is a general pardon for a group or class of people, typically granted by the government to those who have been convicted of a crime. In the context of the question, the rebels returned home under an amnesty, which means that they were pardoned for their crimes and allowed to return to their homes without fear of prosecution.
The other options are incorrect because they do not accurately describe the situation in the question. Option B, assistance, refers to help or support that is given to someone. Option C, security, refers to the state of being safe or protected from harm. Option D, judicial, refers to the system of courts and judges.
