In Han China, the majority of people made their living as .

Farmers.

Explanation:

The majority of the people in Ancient China were peasant farmers. Although they were respected for the food they provided for the rest of the Chinese, they lived tough and difficult lives.

i believe we're not a republic so that is a hard question

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.