“we… do… solemnly and mutually in the presence of god, and one of another, covenant and combine ourselves together into a civil body politic, for our better ordering and preservation.” which of the following is a true statement about the quote

The statement which is true about the quote is A. This is a quote from the Mayflower Compact and reflects the principle of self-government. 
The Mayflower Compact has to do with documenting the events of settling in the Plymouth Colony, and this is a direct quote taken from that document.