Correct Answer: (c) Buddha
Note: Buddha’s foster mother, Mahapajapati Gotami, was the first woman to have been ordained as a bhikkhuni. Mahapajapati Gotami was the foster mother, step mother, and maternal aunt (mother’s sister) of Buddha.
In the Buddhist tradition, she was the first woman to have sought ordination for women, which she did from Gautama Buddha directly, and she became the first bhikkhuni (Buddhist nun).