Why would the senate grant Augustus the right to be in power for the rest of his life and how did they justify their decision? 
 a
Augustus was a king, and monarchs are in power until death.
 b
Augustus persuaded the people he would offer them peace and stability, and they believed him.
 c
Augustus defeated the generals who attempted to take over Rome, and that was his reward.
 d
Augustus became Rome's first emperor, and that power comes with the title.