Correct option is C
Bal Gangadhar Tilak was one of the most prominent leaders of the Indian freedom movement and is often referred to as the "Father of Indian Unrest." He was the first to popularize the concept of Swaraj (self-rule) as a demand for Indian independence from British rule. Tilak famously declared, "Swaraj is my birthright, and I shall have it," which became a powerful slogan for the Indian independence movement.