______’s foster mother Mahapajapati Gotami was the first woman to be ordained as a bhikkhuni.

Buddha

The correct answer is Option 2- Buddha

Mahapajapati Gotami was the Buddha's foster mother and aunt. She was the first woman to be ordained as a bhikkhuni, or Buddhist nun. She was instrumental in the establishment of the bhikkhuni order, and she is considered one of the most important figures in the early history of Buddhism.

The other options are incorrect. Ashoka was the grandson of the Buddha. Arjuna was a warrior hero in the Mahabharata epic. Bindusara was the father of the Buddha.