The correct answer is (c), Sakyas.
The Buddha attained Mahaparinirvana in Kushinagar, a town in the Indian state of Uttar Pradesh. Kushinagar was the capital of the Shakya republic, the Buddha’s homeland. The Shakya republic was a small, independent kingdom located in the foothills of the Himalayas. It was ruled by a council of elders, and its people were known for their courage and independence.
The Buddha was born into the Shakya clan in Lumbini, Nepal. He left his home at the age of 29 to seek enlightenment. After six years of study and meditation, he attained enlightenment under the Bodhi tree in Bodh Gaya, India. He then spent the next 45 years teaching his followers the path to enlightenment.
The Buddha died at the age of 80 in Kushinagar. His death is known as Mahaparinirvana, which means “great final passing away.” The Buddha’s death was a major event in the history of Buddhism. It marked the end of his earthly life and the beginning of the spread of his teachings.
The Mallas, Lichhavis, and Palas were all powerful kingdoms that existed in India during the Buddha’s lifetime. However, the Shakya republic was the Buddha’s homeland, and it was there that he attained Mahaparinirvana.