Which power gives the U.S. Congress the authority to create rules for immigration and naturalization?

Class consciousness can be eroded by __________

a. class conflict b. economic stratification c. political parties d. social mobility

Cell phones present a problem for pollsters for all of the following reasons EXCEPT

A. cell numbers are not listed in telephone directories. B. it is illegal to using robopolling to contact cell phone users. C. cell phone users may be located anywhere. D. cell phones are more common among younger Americans. E. most cell users have a landline, thus resulting in being "double polled."