Option 1: Swami Dayanand

Swami Dayanand was a prominent figure in the Hindu reform movements of the 19th century. He founded the Arya Samaj, which aimed to purify and rejuvenate Hinduism. While he played a significant role in reviving Hinduism, he is not specifically associated with the revival of Hinduism in the 19th century.

Option 2: Swami Vivekananda (Correct Answer)

Swami Vivekananda is widely recognized as the key figure in the revival of Hinduism in the 19th century. He was an influential disciple of Sri Ramakrishna and played a crucial role in introducing Hindu philosophy and spirituality to the western world. His famous speech at the Parliament of the World`s Religions in Chicago in 1893 brought Hinduism into the global spotlight and played a major role in the rejuvenation of Hinduism.

Option 3: Guru Shankaracharya

Guru Shankaracharya (Adi Shankara) was an Indian philosopher and theologian who lived in the 8th century AD. While he was instrumental in the revival of Hinduism during his time, he is not associated with the revitalization of Hinduism in the 19th century.

Option