The correct answer is (c), Mahatma Gandhi.
Hind Swaraj is a book written by Mahatma Gandhi in 1909. It is a polemic against Western civilization and its impact on India. Gandhi argues that India should adopt a policy of self-reliance and non-violence in order to achieve independence.
Aurobindo Ghose was a Bengali nationalist who was involved in the Indian independence movement. He was a proponent of Hindutva, a Hindu nationalist ideology.
C.R. Das was a Bengali lawyer and politician who was involved in the Indian independence movement. He was a leader of the Swaraj Party, which advocated for self-rule for India.
Rajendra Prasad was an Indian lawyer and politician who was the first President of India. He was a leader of the Indian National Congress and a close associate of Mahatma Gandhi.