Its about civilizations in 600ce

B. "The improvements in productivity in early agricultural societies enabled more complex societies to develop" is the best option.

Explanation:

This improvement in productivity mostly came from the division of labor, which allowed people to do things other than farm.

were at first enthusiastic in support of the revolution. however, over time divisions of opinion became apparent between federalists and anti-federalists

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.