He made peace throughout the Empire, no more civil wars and fighting amongst themselves... He gave land and free rights to plebs and advanced into new territory creating many more opportunities for the Roman Empire to thrive in the ancient world...
Hope this helps :)
I believe the answer is D
This is of course subjective, but two of the most important civil liberties are the right to free speech and the right to practice any religion. Many would argue that access to free healthcare and free education at all levels (including college) should be civil liberties as well.