You are presented with the question "What can be found on malignant cells?" and the following answer choices: 
- bacteria
 - weapons
 - bones
 - fever
 - the Sun
 - acetic acid
 - antigens
 - parasites

Now knowing that antigens are found on cancer cells and the cells of transplanted organs and cancer cells are a type of malignant cell, choose the best answer.


 

       antigens  