Correct Option: A

The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.