<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An 80-year-old man comes to the office for evaluation of anemia. His medical history is relevant for end-stage renal disease and aortic stenosis. When questioned about his bowel movements, the patient mentions that he has occasional episodes of loose, black, tarry stools. His heart rate is 78min, respiratory rate is 17min, temperature is 36.6C 97.8F, and blood pressure is 8060 mm Hg. Physical examination shows pale skin and conjunctiva and orthostasis upon standing. A complete blood count shows his hemoglobin is 8.7 gdL, hematocrit is 27, and mean corpuscular volume is 76 μm3. A colonoscopy is obtained. Which of the following is the most likely cause of this patients current condition?? A: Angiodysplasia, B: Colorectal cancer, C: Ischemic colitis, D: Portal hypertension, E: Colonic polyps,  <response>: This is a clinical case of an 80-year-old man with anemia and tarry black stools. The key findings are:- End-stage renal disease and aortic stenosis in medical history- Occasional tarry black stools - Vital signs showing tachycardia and orthostatic hypotension- Lab results showing low hemoglobin, hematocrit, MCV- Colonoscopy was doneBased on the patients advanced age, renal failure, and findings of black tarry stools and anemia, the most likely cause is angiodysplasia. Angiodysplasias are dilated blood vessels in the gastrointestinal tract that can bleed, especially in older patients with chronic diseases like renal failure. The other options are less likely in this clinical scenario.A: Angiodysplasia 