In 1956, people in demanded that soviet troops be removed as part of a call for democratic reforms.

so they can differentiate themselves from others as they saw themselves as the superior race. the star was basically a symbol that meant you are a less of a person than i am because of my race. the star was also degrading for those who had to wear it because they were aware of this and the nazis used the notion to make them feel less like a person.

b is the answer i am assuming

it made them more prductive and efficent but with the change of polcies less and les got into the navy