You are presented with the question "Which characteristic helps an antelope survive?" and the following answer choices: 
- exoskeleton
 - poor sense of smell
 - bad manners
 - protective bony armor
 - Endocrine system
 - excellent hearing
 - bad vision
 - Males and females

Now knowing that better senses have a positive impact on an animal 's survival and an antelope has such a fine sense of hearing that it senses danger long in advance, choose the best answer.


 

      excellent hearing   