In 15th century, who among the following was one of the leading proponents of Vaishnavism in Assam?

Option 2 is correct, i.e. Shankaradeva . Shankaradeva: He was the leading proponents of Vaishnavism in Assam. Sattriya dance in the modern form was introduced by the Vaishnava saint Shankaradeva. He introduced Sattariya dance in 15th century A.D in Assam .