This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammation & Repair, Subject name: Pathology
A 9 year old boy is admitted with acute abdominal pain localized in the right iliac fossa. He is pyrexial with localized peritonism in RIF. The causative cell involved here 
Select and explain. 
A. Lymphocytes, B. Neutrophil, C. Macrophages, D. Monocytes
B: Neutrophil
Answer: B: Neutrophil 
Explanation: Ans. (b) Neutrophil(Ref: Robbins 9th/pg 71; 8th/pg 44)This is a case of acute appendicitisThe principal inflammatory cell in this case of acute appendicitis is the neutrophil.