This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Antitumor activity is shown by all except ? 
Select and explain. 
A. Cytotoxic T lymphocytes, B. Natural ki I ler cells, C. Basophils, D. Macrophages
C: Basophils
Answer: C: Basophils 
Explanation: Ans. is 'c' i.e., Basophils