question: Q:A 69-year-old diabetic woman comes to the emergency department due to right flank pain for 10 days. Her right flank pain is radiating towards her groin and is associated with fever and chills. The pain is exacerbated with hip extension. She feels fatigued and is lying on her left side with her right hip flexed. The CT guided percutaneous drainage reveals 900 ml of greenish pus. The vital signs include blood pressure 145/75 mm Hg, pulse rate 96/min, temperature 36.9°C (98.4°F), respiratory rate 16/min, and the oxygen saturation is 95%. The complete blood count shows the following results upon admission:
  CBC results  
  Leukocytes 16,600/mm3
  Neutrophils 80%
  Lymphocytes 16%
  Eosinophils 1%
  Basophils 1%
  Monocyte 2%
  Hemoglobin 7.6 g/dL
  Creatinine 0.8 mg/dL
  BUN 15 mg/dL
  Which of the following processes most likely could have occurred?? 
  {'A': 'Downregulation of regulation of cellular adhesion molecules in the endothelium', 'B': 'Diapedesis of neutrophils and chemotactic agents', 'C': 'Activation of cytosolic caspases', 'D': 'Decreased expression of selectin in the endothelium', 'E': 'Vasoconstriction'},