Which characteristics of capitalism provide an opportunity for entrepreneurship and allow both buyers and sellers to feel they made a return on an investment? (select all that apply.)

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

i think they came to washington to protest

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they live