The correct option is:
To reduce liberty
Explanation:
Thomas Hobbes explained that people make social contracts, create laws and ordinances because they understand that an exact and stable society is better to one in the "state of nature." As Hobbes thought of it, the state of nature was a state in which all people are constantly at war with one another, owing to the flaws of human nature and the deficiency of any authority characters.
The theory which states that when there are multiple possible explanatons of an event or a phenomenon, the simplest is the best would be Occam's razor.
However, it's important to note that this idea actually states that we shouldn't necessarily multiply ontological entities, which doesn't really mean the easiest solution necessarily.