Mahavira was the 24th Tirthankara of Jainism. He was born in Kundagrama, a village in the present-day Indian state of Bihar, in the 6th century BCE. He was the son of Siddhartha and Trishala, and he was raised in a royal family. However, he renounced his wealth and privilege at the age of 30 to pursue a life of asceticism. He spent the next 12 years meditating and practicing austerities, and he eventually attained enlightenment. He then spent the remaining 30 years of his life teaching others about the path to liberation. Mahavira is considered to be one of the most important figures in Jainism, and his teachings continue to be followed by millions of people around the world.
The other options are incorrect because they do not correspond to the correct number of Tirthankaras. There are 24 Tirthankaras in Jainism, and Mahavira was the 24th.