QUESTION $29$

What factor allowed the Qin to unify China proclaiming Huangdi emperor?

Agricultural surplus $($conquer land, reward peasants and nobles who had fought for them with land, produced agricultural surplus, pay for the army and more conquests$).$

Trade $($viewed pursuit of profit as beneficial, $--$ merchants were the backbone of the Qin financial stability$).$

Religion $($Buddhism was introduced by missionaries from India, focused on personal enlightenment, and options for women who wanted education or a choice other than marriage and motherhood$).$

Technology $($invention of gunpowder allowed them to conquer the warring Ba states$)$