<h2>I believe it was C I am sorry if it was wrong.</h2>
Answer:
stable civilizations most of the time don't need to worry about things like poverty, or sickness. those are things unstable civilizations do need to worry about. When a civilization is stable, they have more time on their hands to create innovations and work. Meanwhile unstable civilizations will need to be worrying about all the things they need to fix.
Explanation:
Good luck :)
Over a years, the United States of America went from being colonies of Britain, to a string of free states, to a functioning democratic nation.