One of the ex situ conservation methods for endangered species is

Options

A. wildlife sanctuaries
B. biosphere reserves
C. cryoprcservation
D. national parks.

Answer

C

Explanation

Ex situ conservatio is the preservation of components of biological diversity outside their natural habitats, in zoos, aquaria, botanic gardens and gene banks, for example. Zoos, botanical gardens and arboretums are the most conventional method of ex situ conservation, all of which house whole, protected specimens for breeding and reintroduction into the wild when necessary and possible. These facilities provide not only housing and care for specimens of endangered species, but also have an educational value. Rest of the given options are example of insitu conservation.