The red data book keeps the record ofA. Endangered animals and plantsB. Extinct animals and plantsC. Endemic animals and plantsD. All of the above

The correct answer is D. All of the above.

The Red Data Book, also known as the Red List, is a comprehensive record that documents various categories of species that are at risk of extinction. It includes information on endangered animals and plants, which are species that face a high risk of extinction in the near future if appropriate conservation measures are not taken. The Red Data Book also includes information on extinct animals and plants, which are species that no longer exist in the wild. Additionally, it covers endemic animals and plants, which are species that are native and restricted to a particular geographic location or region. Therefore, the Red Data Book encompasses all of these categories: endangered, extinct, and endemic species.