The Confluence of Rivers Alaknanda and Bhagirathi take Place at
Option 1 is the right answer.
Devprayaga is a town in Uttarkhand , where rivers Alaknanda and Bhagirathi meet and take the name Ganga.
Traditionally, it is considered to be the place where sage Devasharma led his ascetic life, giving birth its present name, Devprayag. It is one of the five sacred confluences in the hills and is an important place of pilgrimage for devout Hindus.