All of the following are sources of prejudice and discrimination except:
a. the social environment
b. subjugation
c. personality influences
d. competition for resources

i believe the answer is c. personality influences

Explanation:

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;

answer; i believe that the correct answer is ( rivers);