You are presented with the question "what have good eyesight and a keen sense of smell?" and the following answer choices: 
- mammals
 - fur seals
 - tortoises
 - sharks
 - animals
 - elephants
 - snakes
 - alpacas

Now knowing that most reptiles have good eyesight and a keen sense of smell and snakes are limbless reptiles, choose the best answer.


 

       snakes  