You are presented with the question "Sensing what requires the brain?" and the following answer choices: 
- poltergeist
 - light
 - demons
 - state
 - voltage
 - nerves
 - motion
 - ghosts

Now knowing that sight is the ability to sense light, and the eye is the organ that senses light and once the brain interprets the messages, the sight process is completed, choose the best answer.


 

  light       