Respuesta :
The answer is C)mammals have body hair.
the answer is c because reptiles don't have body hair they have scails or rough skin, and also its not d because mammals do not lay eggs, you are a human humans are mammals and do not lay eggs. b is right mammals do have lungs but so do most reptiles. and A is wrong because mammals are not cold blooded reptiles are.
plz rate and or mark brainliest i took time to write this, and i'm in school right now sooo.