One of the ex situ conservation methods for endangered species is

Options

A. Wildlife Sanctuaries
B. Biosphere Reserves
C. Cryopreservation
D. National parks

Answer

C

Explanation

Preservation at -`196^(@)` (liq.`N_(2))` can maintain tissue culture, embryos, animal cells/tissues, spermatogoa, etc. is called as cryopreservation. It is an ex-situ, conservation method i.e. conservation of organism outside their natural homes other ex-situ conservation methods are off site collection and genebanks.