If you want to see gharials in their natural habitat, which one of the following is the best place to visit ?

The Chambal River is the correct choice because it hosts the National Chambal Sanctuary, which is the most significant natural stronghold and primary breeding ground for the critically endangered gharial in India. While Bhitarkanika Mangroves is a tempting option due to its high reptile density, it is specifically famous for Saltwater Crocodiles, not gharials, which require deep, fast-flowing freshwater habitats. This question tests the core concept of identifying specific protected areas and the flagship endangered species they are designed to conserve.