The correct answer is option 'D' Jains.

Jainism is an ancient Indian religion that was founded by Lord Mahavira in the 6th century BCE. Mahavira is considered to be the last and 24th Tirthankara (spiritual teacher) of Jainism. His followers are known as Jains.

Jainism is based on the principles of non-violence (ahimsa), truthfulness (satya), non-stealing (asteya), celibacy (brahmacharya), and non-attachment (aparigraha). Jains believe in the concept of karma, which means that every action has consequences and affects the soul's future.

Jainism emphasizes the importance of self-discipline, meditation, and asceticism. Jains follow a strict vegetarian diet and avoid harming any living beings. They believe in the equality of all living beings and strive to live a life of compassion and non-violence.

Key Points:
- Jainism was founded by Lord Mahavira in the 6th century BCE.
- Mahavira is considered to be the last and 24th Tirthankara of Jainism.
- The followers of Mahavira are known as Jains.
- Jainism is based on principles such as non-violence, truthfulness, non-stealing, celibacy, and non-attachment.
- Jains believe in the concept of karma and practice self-discipline, meditation, and asceticism.
- Jains follow a strict vegetarian diet and believe in the equality of all living beings.
- The main goal of Jains is to achieve liberation from the cycle of birth and death and attain moksha or enlightenment.

In conclusion, the followers of Mahavira are known as Jains. Jainism is a religion that emphasizes non-violence, truthfulness, and self-discipline. Jains follow a strict vegetarian diet and strive to live a life of compassion and non-violence.