Answer:
Some of the greatest barriers to assimilation were prejudice, discrimination, stereotyping, and federal law itself. Many ethnic groups ran into prejudice in America. In the workplace, Jewish men and women ran into problems with others – even those who shared their religious beliefs but not their nationality.
Explanation:
Try and remember it this way. Cause and effect. Effect is the result of something, while affect is like it influenced something.
To me the answer is B because that one doesn't really sound right compared to the other answers.