You ask a question that you don't regarding school subjects and others who come across your question and know how to answer will help you and reply
The distance across the Atlantic Ocean
The British government would have to travel across the Atlantic to send any communication, enforce any laws or exchange any resources with the American colonies.
Americans were self-sufficient and could provide anything they needed to support their society because of they didn't depend on Great Britain they were less excepted on their rule.
They were different because they were based on one god
Other laws in other regions were based around the idea of multiple gods so there were laws for various gods, agricultural, judicial, and similar things. The ten commandments were based around a single god which usually meant that it applied to everyone equally since they weren't followers of a whole pantheon and their differences.
I am unable to see the exact choices you are supplied with, but frank refers to saying or establishing something sincerely and bluntly.