<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 14-year-old girl presents with pain in her right lower abdomen. She says the pain is sudden, severe, colicky, and associated with nausea and vomiting. Physical examination reveals tachycardia, point tenderness, and rebound tenderness in the right iliac region. Emergency laparotomy reveals an inflamed appendix. Her blood pressure is 12884, heart rate is 92min, and respiratory rate is 16min. Her complete blood cell count shows an increase in the number of cells seen in the provided picture. What is the main function of these cells?? A: Phagocytosis, B: Allergic reaction, C: Blood clotting, D: Transplant rejection, E: Antigen presentation,  <response>: Based on the question stem, this is a case of acute appendicitis in a 14-year-old girl. The key findings are right lower quadrant pain, nausea, vomiting, tachycardia, and tenderness on physical exam. The laparotomy revealing an inflamed appendix confirms the diagnosis. The image shows an increased number of neutrophils, a type of white blood cell. Neutrophils are part of the innate immune system and their main function is phagocytosis - the engulfment and digestion of pathogens, cell debris, and foreign particles. An increase in neutrophils, called neutrophilia, is commonly seen in bacterial infections like appendicitis as the body mobilizes these cells to combat the infection.A: Phagocytosis 