What was most likely motivation to create the mayflower compact which best explains why the plymouth settlement was so important in american history?

The Mayflower Compact was a collection of rules for the for self-government to be created in America for the first time. It was the first agreement by the English settlers in the colonies. The Mayflower Compact, signed in 1620 by the pilgrims and other passengers who boarded the ship from England for the New World. The Compact continued to operate until 1691 when Plymouth Colony came under Massachusetts Bay Colony. The Mayflower Compact played an important role in future for the colonies to bring democracy and America independence from Britain.      

the answer is prolly b