You are presented with the question "Lymphocytes are a key cell involved in what type of reaction?" and the following answer choices: 
- Final Symphonic movement
 - illness
 - positive
 - fever
 - allergic
 - autologous transplant
 - allogenic stem cell transplant
 - sweating

Now knowing that lymphocytes are the key cells involved in the immune response and allergies are an immune system response, choose the best answer.


 

     allergic    