<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 66-year-old woman comes to the emergency department because of a 1-day history of severe abdominal pain, nausea, and vomiting. She has also had profuse watery diarrhea with streaks of blood for the past 5 days. She had a urinary tract infection 3 weeks ago and was treated with a 14-day course of ciprofloxacin. She appears in severe distress. Her temperature is 39.3C 102.7F, pulse is 110min, and blood pressure is 10060 mm Hg. Examination shows a distended abdomen, tenderness in the lower quadrants, and hypoactive bowel sounds; rebound tenderness and abdominal rigidity are absent. Cardiopulmonary examination shows no abnormalities. Test of the stool for occult blood is positive. Laboratory studies show:Hemoglobin 10.2 gdLLeukocyte count 28,000mm3SerumNa 133 mEqLK 3.3 mEqLCl- 97 mEqLGlucose 98 mgdLCreatinine 1.3 mgdLTwo wide bore needles are inserted and intravenous fluids are administered. An abdominal x-ray of the patient would be most likely to show which of the following?? A: Dilation of the colon with loss of haustration, B: String-like appearance of a bowel loop, C: Dilated transverse colon and cut-off sign at splenic flexure, D: Large volume of gas under the right diaphragm, E: Dilated sigmoid colon resembling a coffee bean,  <response>: This is a clinical vignette describing a 66-year-old woman presenting with abdominal pain, nausea, vomiting, diarrhea with blood, fever, tachycardia, and hypotension. She was recently treated with ciprofloxacin for a UTI. On exam she has abdominal tenderness and distension. Labs show leukocytosis, anemia, electrolyte abnormalities, and a positive stool occult blood test. Based on the history and physical exam findings, the most likely diagnosis is pseudomembranous colitis secondary to recent antibiotic use. An abdominal x-ray would likely show colonic dilation with loss of normal haustral markings.Choice A describes colonic dilation with loss of haustration which would be expected in pseudomembranous colitis. Choices B, D and E describe findings unrelated to this diagnosis. Choice C may be seen but would not be the most likely x-ray finding.A: Dilation of the colon with loss of haustration 