Answer: Species B and C.
Explanation: B and C are more closely related because they have all the three characteristics in common. Both posses backbone which means they are vertebrates. The two have scaly skin which means they are reptiles. Reptiles are animals that posses dry scaly skin. They are also cold-blooded animals. The two also have hard-shelled eggs which shows they are not mammals. Mammals are animals which give birth to live young ones.
