What sentence best summarizes the section entitled “Coming To America?”

A
There was one group of Chinese, however, that could not be legally kept out of the country—those with a parent who was a U. S. citizen.

B
At first, Chinese immigrants were welcomed into the U. S., but as jobs became scarce, the government made it nearly impossible for Chinese to enter the country.

C
Most of the first Chinese immigrants were men that came to work in mining, farming, and railroads, so that they could send money back to their families.

D
Since many people who wanted to immigrate to the U. S. did not have a parent who was a citizen, they bought fake papers and became paper sons and paper daughters.