Yes, lack of foreign conflict for close to 100 years until world war 1 which is a sign of its success.
I am confused about the question that you are asking but if you mean choosing between the choices that you have listed then i believe the answer is 3
When dopamine levels are elevated this reward pathway reinforces the use of the drug.
Dopamine is an organic chemical that is produced in our bodies, and is related to reward-motivated behavior.
The anticipation of most types of rewards increases the levels of dopamine in the brain, and many drugs also increase dopamine as well as blocking its reuptake into the neurons follow release.
He was able to do it because he himself was a trained soldier
People and soldiers respected him for this since he knew what he was doing. Many Chinese leaders joined him and those that wouldn't would be conquered.
hope this helps
In October 1781, the war<span> virtually came to an end when General Cornwallis was surrounded and forced to surrender the British position at Yorktown, Virginia. Two years later, the </span>Treaty of Paris<span> made it official: America was independent.</span>
