Which one of the following sets of animals share a four chambered heart?

Hi, I have a question and I hope anyone could answer it:

Which one of the following sets of animals share a four chambered heart? 

(a) Amphibian, Reptiles, Birds 

(b) Crocodiles, Birds, Mammals 

(c) Crocodiles, Lizards, Turtles 

(d) Lizards, Mammals, Birds

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