The economic stability that lead to the neolithic revolution was: C. Political systems
Economic stability lead to a situation when people no longer wanted to use violence toward one another when they want to obtain a certain type of resources. This is why a political system to create a regulator was made during the neolithic revolution.
An Lushan led the rebellion.
He claimed that if he did all that it would be helpful for both the people and him. He believed that if you are a politician, you work for yourself and in your self-interest. If you find a way to help yourself and at the same time your people and you country, that would be the best, so being available for help was a political move that would help elevate his rank, while also being useful for the people.