According to my point of view, the main purpose of government is to establish a secure system to maintain liberty and livelihood, make sure people are getting enough money to liver better and above poverty line.
Because, if people are secure and have liberty but government is not doing anything about that. people are not survive and it will lead to disruption.
I'm not quite sure how to answer this question because it is worded horribly
I believe the answer is D. Hope this helped!