Here's a problem to solve: Which of these is the main function of the vomiting reflex?

Among the 4 following options, which is the correct answer?

- A: to rid the body of wastes
 
- B: to expel food that has no nutritional value
 
- C: to empty the stomach when it has too much food in it
 
- D: to remove toxic material from the stomach before it is absorbed
 