They can react with each other by colliding and making a boom.
Aboard the Mayflower on the way to the colonies, he created the Mayflower Compact which was the first "governing paper" this creating and changing the government of Massachusetts into what was agreed upon by him and his fellow pilgrims aboard. So, B.
When they act against their common interests and/or threatens the safety of the people without cause
A is the awnser to your question