The correct answer is option 3, Rabindra Nath Tagore. Shantiniketan was built by Rabindra Nath Tagore, who was a Nobel laureate and a prominent figure in Bengali literature and Indian arts. He founded Shantiniketan in 1901 as an ashram or a spiritual retreat. Shantiniketan, which translates to "Abode of Peace," is located in the Birbhum district of West Bengal, India. Tagore envisioned Shantiniketan as a center for learning and education where students can be close to nature and develop a holistic understanding of life. He established a unique educational institution called Visva-Bharati University in Shantiniketan, which is known for its emphasis on liberal arts, humanism, and cultural heritage. The institution has played a significant role in promoting Tagore`s ideas and philosophy.