What factors explain the major increase in population in half of China and a much smaller change in the other half?

an invasion from the north and rich farmland to the south
an invasion from the south and rich farmland to the north
overland trade and urbanization
seagoing trade and urbanization

please need hel

2 is armenia i think

china has confucianism thats everywhere in asia but it isn't really a religion.  

answer: alexander hamilton

explanation: alexander hamilton was george washington's right hand man. he took an early role in the militia as the american revolutionary war began. in 1777, he became a senior aide to general washington in running the new continental army.

(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.