Correct option is C
Ans.(c)
Ex-situ conservation is the preservation of biological diversity components outside of their natural habitats. It is accomplished through the preservation of genetic resources, as well as wild and cultivated species. Cryopreservation, gene banks, zoological parks, botanical gardens, and wildlife safari parks are just a few examples.
Conservation of species in their natural habitats is known as in situ conservation. It is most effective means of preserving biodiversity. Sacred grooves, biosphere reserves, national parks, and sanctuaries are some examples.