The correct answer is option 1, Hind Swaraj. Hind Swaraj, also known as Indian Home Rule, is a book written by Mahatma Gandhi in 1909. It is a dialogue between a reader and the author, where Gandhi discusses his views on various social, political, and economic issues facing India at that time.

Option 2, An Autobiography—The Story of My Experiments with Truth, is Gandhi`s autobiography where he recounts his personal journey and experiences. While it provides insights into his life and beliefs, it does not specifically focus on his social ideals.

Option 3, History of the Satyagraha in South Africa, is a book by Gandhi that highlights his experiences with Satyagraha (nonviolent resistance) during his time in South Africa. Though it played a role in shaping his ideas, it does not put forth his social ideals in the same way as Hind Swaraj.

Option 4, The Bhagavad Gita According to Gandhi, is a book that explores Gandhi`s interpretations of the Bhagavad Gita, a sacred Hindu scripture. While his interpretations are important to understanding his spirituality, they do not cover his social ideals in the same depth as Hind Swaraj.

Therefore,