The correct answer is Kabir.
Kabir was a 15th-century Indian mystic poet and saint who is considered one of the most important figures in the Bhakti movement. He was born into a Muslim family but was drawn to Hindu teachings. His teachings emphasized the essential oneness of all religions and the importance of devotion to God. He is often quoted as saying, “Hindus and Muslims are like two pots made from the same clay.”
Tulsidas was a 16th-century Indian poet and saint who is best known for his epic poem Ramacharitamanasa. He was a devout Hindu and his teachings emphasized the importance of devotion to Rama.
Ramanand was a 12th-century Indian saint who is considered the founder of the Ramanandi sect of Hinduism. He was a disciple of Gorakhnath and his teachings emphasized the importance of bhakti, or devotion to God.
Raidasa was a 16th-century Indian saint who was a disciple of Kabir. He was a devout Hindu and his teachings emphasized the importance of devotion to God.
All of these saints were important figures in the Bhakti movement, but Kabir was the one who most emphasized the essential oneness of all religions.