The correct answer is B. Gogabil.
Gogabil Bird Sanctuary is a bird sanctuary located in the Gopalganj district of Bihar, India. It is spread over an area of 1,000 hectares and was established in 1982. The sanctuary is home to a variety of birds, including the lalsar bird. The lalsar bird is a small, migratory bird that is found in the wetlands of India. It is a member of the sandpiper family and is known for its long, red legs. The lalsar bird is a threatened species and is listed as “vulnerable” on the IUCN Red List. The Gogabil Bird Sanctuary is one of the few places where the lalsar bird can be found in India. The sanctuary is also home to a variety of other birds, including the painted stork, the black-necked stork, and the flamingo. The sanctuary is a popular tourist destination and is a great place to see birds in their natural habitat.
The other options are incorrect because they are not bird sanctuaries. Buxar is a city in the Buxar district of Bihar, India. Kanwar Jheel is a lake in the Gopalganj district of Bihar, India. Makti Dam is a dam on the Son River in the Rohtas district of Bihar, India.