The correct answer is: a) Gharial.
The Gharial is a critically endangered species of crocodile found in the Indian subcontinent. It is the only species in the genus Gavialis. Gharials are found in freshwater rivers and streams, and they are known for their long, slender snouts. They are carnivores, and their diet consists mainly of fish.
The Ropar Wetland is an important habitat for the Gharial. The wetland provides a safe place for Gharials to breed and raise their young. The wetland also provides a source of food for Gharials, as it is home to a variety of fish species.
The other options are incorrect because:
- The Smooth-coated Otter is not endangered.
- The Indian Pangolin is not found in the Indian subcontinent.
- The Great Indian Bustard is not a crocodile.
The Gharial is a fascinating and important species. It is important to protect the Ropar Wetland and other habitats that are important for the Gharial.