There are three animals named A, B and C. Among them A can stay on land as well as in water. When it stays at land it respires through lungs, but when it goes into water, it respires through its moist skin. Animal B has specific organs to respire in the water which is not found in any other water animal. While animal C is a water animal which respires through nostrils and lungs. Now give the names of animal A, B and C.