You are presented with the question "How can animals with six legs detect sound?" and the following answer choices: 
- thorax
 - Refract it
 - electricity
 - they bend
 - wings
 - environment
 - pupils
 - antennae

Now knowing that some insects can use their antennae to detect sound and every insect has six legs, that's an insect, choose the best answer.


 

        antennae 