You are presented with the question "What must be removed from the stomach before it is absorbed?" and the following answer choices: 
- hormones
 - Proteins
 - all liquids
 - bacteria
 - nutrients
 - steroids
 - an overdose
 - Bodily water

Now knowing that the vomiting reflex is used to remove toxic material from the stomach before it is absorbed and an overdose can cause vomiting, choose the best answer.


 

       an overdose  