The organisation which has published Red Data Book is
A
International Union for Conservation of Nature and Natural Resource
B
National Environmental Engineering Research Institute
C
National Wildlife Action Plan
D
Convention on International Trade in Endangered Species of Wild Fauna and Flora
Correct option is A. International Union for Conservation of Nature and Natural Resource
The IUCN Red Data Book is the most comprehensive inventory of the global conservation status of biological species. It evaluates the threat of species towards extinction. The list classifies threatened species under nine categories. The categories include extinct, extinct in the wild, endangered species, etc.
So, the correct answer is 'International Union for Conservation of Nature and Natural Resource'.