Which of the following animal groups is correctly paired with its characteristic?

• A

  Amphibia - Skin is without scales and eyes are without eyelids

• B

  Osteichthyes - Marine and freshwater fishes with bony endoskeleton and ventral mouth

• C

  Reptilia - Mostly terrestrial animals with dry and cornified skin, epidermal scales or scutes

• D

  Aves - Feathered bipedal poikilotherms with pneumatic bones and air sacs