Question

Who was the foster mother of Gautama Buddha?
1. Amrapali
2. Subadra
3. Gautami
4. Sujata

Answer 1

Hint: Gautama Buddha was the founder of Buddhism. As per Buddhist literature, he left his home and wandered in forests to attain true knowledge. At last, he attained this pure knowledge at Bodh Gaya in Bihar. He was born in 563 BCE. It is said that his mother after the seven days of his birth and he was brought up by a woman resembling his name.

Complete answer:
Mahamaya was the mother of Gautama Buddha. It is said in Buddhist tradition that Mahamaya died after seven days of the birth of Buddha. So, it is clear that Gautam Buddha was not brought and raised by his own mother.
Mahaprajapati Gautami was Siddhartha’s (Gautama Buddha) maternal aunt. She and her sister Maya were both married to the king Suddodhan. Maya gave birth to Siddhartha and died after seven days of the birth. After Maya's death, Prajapati looked after the boy and raised him as his own son.
The answer is 3. Gautami

Additional Information
Mahaprajapati Gautami is widely regarded as the first Bhiksuni of the Buddhist order. After attaining the knowledge, Siddhartha became Buddha and visited Kapilvastu,Gautami began to practice the dharma. As per Buddhist tradition, she requested thrice to Buddha to join the sangha.
Note:
Mahaprajapti Gautami raised Siddhartha or Gautama Buddha as her own son. Later on, when Siddhartha attained knowledge and truth, Gautami joined Sangha with his permission. She also became the first Bhiksuni. She often served as intermediary between Buddha and other Bhiksunis.