question: Q:A 35-year-old man is brought to the emergency department 30 minutes after being involved in a motor vehicle collision. The patient was on his way to work before he lost control of his car and crashed into a tree. On arrival, the patient appears weak and lethargic. He has pain in his abdomen. His temperature is 37°C (98.6°F), pulse is 121/min, respirations are 22/min, and blood pressure is 85/60 mm Hg. He is oriented to person but not to place or time. The lungs are clear to auscultation. Cardiac examination shows tachycardia but no murmurs, rubs, or gallops. Abdominal examination shows several bruises above the umbilicus; there is diffuse abdominal tenderness. Focused assessment with sonography in trauma (FAST) is performed but the results are inconclusive. In addition to intravenous fluid resuscitation, which of the following is the most appropriate next step in management of this patient?? 
  {'A': 'CT scan of the abdomen', 'B': 'Exploratory laparotomy', 'C': 'Nasogastric tube insertion', 'D': 'X-ray of the abdomen', 'E': 'Diagnostic peritoneal lavage'},