The correct answer is (a). Swami Vivekanand came to Almora for the first time in 1889. He was invited by the Maharaja of Almora, Sri Anand Chand, to give a series of lectures on Hinduism. Vivekanand’s stay in Almora was a turning point in his life. He spent several months in the Himalayas, meditating and studying Hindu scriptures. It was during this time that he developed his philosophy of Vedanta, which emphasizes the unity of all religions and the importance of self-realization. After leaving Almora, Vivekanand returned to Kolkata and founded the Ramakrishna Mission, a Hindu religious organization that is dedicated to social service and the upliftment of the poor.
Option (b) is incorrect because Swami Vivekanand came to Almora for the first time in 1889, not 1891.
Option (c) is incorrect because Swami Vivekanand was born in 1863, not 1790.
Option (d) is incorrect because Swami Vivekanand came to Almora for the first time in 1889, not 1890.