You are presented with the question "Some insects can use their antennae to detect" and the following answer choices: 
- chemicals
 - scattered light
 - an area swollen with pus
 - bending light rays
 - vibrational energy
 - heat or cold
 - cloudy and rainy weather
 - that material's properties

Now knowing that some insects can use their antennae to detect sound and sounds are caused by vibrational energy, choose the best answer.


 

     vibrational energy    