Yes, the answer to this would be the third option. One of the causes of the rise of the conservative movements in the 1970s is the shifts in the demographics to the suburbs and Sunbelt. Conservative movements are actually rooted from American history. Hope this helps.
The Han, Roman and Gupta empires all fell do to invasion. A strong, loyal army is necessary to protect the empire from invasion. All of these empires were first weakened by a succession weak governments. The trust and faith in the government was eroded over time. Internal strife by the people because of declining abilities of the government to govern weaken the state. The government should try to prevent internal rebellions by maintaining good governance over the people.
It split the Empire into two separate halves>
Indians- india virtually clothes the entire world, cotton textiles, mathematics, numerals, and invention of zero.
Malays- most intrepid sailors of the time period, many delivered goods from South China to East Africa, spices cloves ,nutmeg, & mace.
Chinese- champa rice, printing, gunpowder, Daoism, Buddhism, compass, silk improved in india, middle east, north africa and islamic spain. Discovering a silver mine as well as gold.
