The U.S. Constitution and federal laws are supreme over state constitutions and state laws

According to the text, the War on Poverty

A. was so flawed in design that there was no way it could have succeeded. B. was designed well but failed because it was poorly implemented. C. reduced the number of people in poverty. D. increased the political unity between people receiving public assistance and those covered by social insurance. E. was a program that almost all conservatives had to admit was a success.

If you want to make sure that you have the same number of participants in each groups, you should use

A) free random assignment. B) randomization within blocks. C) stratified random sampling. D) random sampling.