Answer:
Chinese received 30-50 percent lower wages than whites for the same job and they had to pay for their own food stuffs,” Chang says. “They also had the most difficult and dangerous work, including tunneling and the use of explosives. There is also evidence they faced physical abuse at times from some supervisors
During the period between 1775 and 180, many African Americans gained freedom from slavery, yet during the same period, the institution of slavery expanded. The changes took place in different locations in the United States of America. The Northern states opposed slavery while the Southern states still enforced slavery. Many African American slaves managed to escape from the South to the North where they were freed from slavery. The freed African-American slaves spent their time working towards helping the slaves in the Southern states escape towards the North. The slaves in the South were forced to work on the tobacco and cotton plantations. They bided their time until they were able to escape.
The answer is B, a state can make laws that regulate commerce in neighboring states.