The correct answer is Option 4- 30

Mahavira left home at the age of 30. He was born in Kundagrama, Bihar, India in 599 BCE. He was the son of Siddhartha and Trishala, who belonged to the Kshatriya caste.

Mahavira was educated in the traditional Hindu scriptures and philosophy. However, he was not satisfied with the teachings of the Vedas and Upanishads. He believed that they did not provide a way to achieve liberation from suffering.

At the age of 30, Mahavira renounced his worldly possessions and went to live in a forest. He practiced severe austerities for twelve years, and eventually attained enlightenment. He became the 24th Tirthankara of Jainism.

Mahavira taught that the only way to achieve liberation from suffering is to follow the path of non-violence, truth, and asceticism. He also taught that the soul is eternal and does not die with the body.

Mahavira's teachings had a profound impact on Jainism, and they continue to be followed by Jains today.