Fact 1: Wings are part of the exoskeleton and attached to the thorax.

Fact 2: Behind the head is the thorax.

Given the two facts above, answer the question "wings are part of the exoskeleton and attached where?" with the following options: 
- on the feet
 - objects that have mass
 - in front of the head
 - an organism's body
 - Earth orbiting the Sun
 - behind the head
 - layers of fat
 - on the face


 

      behind the head   