<span>the best option is B
the development of more efficient agriculture
The emergence of efficient forms of agriculture especially in Mesopotamia, led to emergence of early city states as food was produced in surplus to feed the town population. it also led to division of labor. this form of agriculture also contributed to sedentary lifestyle and improved nutrition thus explosive population that contributed to city establishments.
</span>
Both the French and American Revolution began with a king that the country was tired of. Although, the colonists broke off of Britain, and France executed their king. On the other hand, they both had their ups and downs and in the end, won independance and freedoms. However, the French had ruthless leaders all throughout the revolution, who manipulated them, and the Americans just fought their way to victory with Britain instead of trying to take over.
To contain communism, thinking was Vietnam went comunist it would spread more globally.
