B Chinese alligator is a unique crocodile in China, and it is one of the smallest crocodile species in the world. It is both ancient and an endangered reptile in the world. Many features of dinosaurs and reptiles can still be found in Chinese alligators. Therefore, people call the Chinese alligator the "living fossil" of Mesozoic. China has listed the Chinese alligator as a national first-class protected animal.
C. Giant salamander is the largest and most precious amphibian in the world. It sounds like a child, so people call it "giant salamander", which is a national second-class protected aquatic wild animal and a key development variety of agricultural industrialization and characteristic agriculture. It is a wild animal genetic protection variety.
D brown eared pheasant is a rare bird endemic to China and listed as a national first-class protected animal. Brown eared pheasant mainly inhabits the forest areas dominated by Larix principis-rupprechtii and spruce, and the secondary coniferous and broadleaved mixed forests of Larix principis-rupprechtii, spruce, poplar and birch. It is only found in Luliang Mountain in Shanxi, Northwest Hebei, Huanglong Mountain in Shaanxi and Dongling Mountain in Beijing.
So choose: C.