The correct answer is " Swami Vivekananda ".
A major proponent in the popularisation of this Universalist and Perennialist interpretation of Advaita Vedānta was Swami Vivekananda, who played a major role in the revival of Hinduism, and the spread of Advaita Vedānta to the west via the Ramakrishna Mission.
Vivekananda's interpretation, often termed "Neo-Vedanta", emphasized the universal aspects of Advaita, highlighting the inherent divinity of all beings and the potential for realizing this divinity through various paths.
He presented Vedanta as a rational and universal philosophy that could address the spiritual needs of humanity, transcending sectarian boundaries.
His approach resonated with many in the West who were seeking a spiritual alternative to traditional Western religions.