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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the answer to this question is the third option. hope this