You are presented with the question "antigens are found on cancer cells and the cells of transplanted what?" and the following answer choices: 
- personality
 - density
 - alveoli
 - lungs
 - the skin
 - epidermal
 - livers
 - digestion

Now knowing that antigens are found on cancer cells and the cells of transplanted organs and organs such as the stomach and liver also begin to develop, choose the best answer.


 

       livers  