The Nurse Is Teaching a Group of Grade School Children

The nurse is teaching a group of grade school children about some body functions.During the discussion, one student asks the nurse, "Why do I sneeze?" The nurse's best response is:

A) "A sneeze is cause by a contraction of your throat and lungs."
B) "A sneeze is your body's way of getting rid of something irritating."
C) "You sneeze because your body needs to take a really deep breath."
D) "The back part of your brain is in charge of sneezes and coughs."