What do details in this passage state implicitly

Unlike european immigrants, chinese immigrants in the 1800s faced: a. language barriers b. laws that severely limited entry c. cultural differences d. nativist sentiments

Profit is the term for that is left over after the costs have been paid in a budget or business. a) money. b) supply. c) demand. d) tax

Why did poland, hungary, and east germany join the warsaw pact? a)their people voted to join in free elections. b)their efforts to join nato failed. c)they wanted to stop the spread of communism in europe. d)they were soviet satellites that had little choice.