Correct Answer: (a) DevPrayag
Solution:Devprayag is a pilgrimage town in the Tehri Garhwal district of Uttarakhand. Alaknanda and Bhagirathi rivers merge to form the holy River Ganga at Devprayag. The small town is situated on the route from Rishikesh to Badrinath.
Devprayag literally means 'holy confluence'. It is an extremely important religious site for Hindus. Ganga, the biggest and the holiest river in India, starts its journey to the plains and further towards Bay of Bengal from Devprayag.