Explanation
A: In-situ
Reservation of species in its natural habitat is called "in-situ" conservation. In-situ conservation involves the protection and preservation of species within their natural ecosystems and habitats. This approach aims to maintain the genetic diversity, ecological balance, and natural processes necessary for the survival of species in their native environments. It involves the establishment and management of protected areas, national parks, wildlife sanctuaries, and other conservation reserves to ensure the long-term viability of species and their habitats.
