The correct answer is: c) Sathya Sai Baba.
Sathya Sai Baba was an Indian spiritual leader who founded the Sathya Sai Organization. He was born in Puttaparthi, Andhra Pradesh, India on November 23, 1926. He claimed to be an avatar, or incarnation of God, and attracted millions of followers around the world. He died on April 24, 2011.
Sri Aurobindo was an Indian philosopher, yogi, and nationalist. He was born in Calcutta, British India on August 15, 1872. He is considered one of the most important figures in Indian philosophy and spirituality. He died on December 5, 1950.
Shirdi Sai Baba was an Indian spiritual leader who lived in Shirdi, Maharashtra, India from 1838 to 1918. He is considered one of the most important saints in Indian history.
Swami Vivekananda was an Indian Hindu monk and philosopher. He was born in Kolkata, British India on January 12, 1863. He is considered one of the most important figures in the Hindu Renaissance. He died on July 4, 1902.