The correct answer is: A. Golaghat.
Pani Dihing Bird Sanctuary is a bird sanctuary in Golaghat district of Assam, India. It is located on the banks of the Pani Dihing River, about 100 km from Jorhat. The sanctuary was established in 1980 to protect the breeding and feeding grounds of migratory birds. It is home to over 200 species of birds, including the endangered Bengal florican and the white-winged duck. The sanctuary is also home to a variety of other wildlife, including tigers, elephants, and deer.
Option B, Dhemaji, is incorrect because Pani Dihing Bird Sanctuary is not located in Dhemaji district.
Option C, Jorhat, is incorrect because Pani Dihing Bird Sanctuary is not located in Jorhat district.
Option D, Sivsagar, is incorrect because Pani Dihing Bird Sanctuary is not located in Sivsagar district.