Maria Mitchell gained fame for her a a. writings on equality.
b. discovery ofa comet. a
c. work to support the rights of women.

    It is b. discovery of a comet. because Maria Mitchell was an American astronomer. In 1847, she discovered a comet named 1847 VI that was later known as “Miss Mitchell’s Comet” in her honor. She won a gold medal prize for her discovery, which was presented to her by King Christian VIII of Denmark in 1848.

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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.