Ganga Sagar Mela is conducted at the mouth of the river Hooghly in ________.

Correct option is A

The Gangasagar Mela and pilgrimage is held annually on Sagar Island's southern tip, where the Ganges enters the Bay of Bengal. This confluence is also called Gangasagar or Gangasagara. Near the confluence, the Kapila Temple is located.
 The island of Gangasagar is among the most popular Hindu pilgrimage places in the country. Each year on Makar Sankranti (mid-January), large number of devotees from all over the nation, congregate at Gangasagar for a sacred dip at the convergence of the river Ganga and the Bay of Bengal.