<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 49-year-old man with alcohol use disorder is brought to the emergency department immediately after two episodes of coffee-ground emesis. His pulse is 116min and blood pressure is 9254 mm Hg. Physical examination shows a distended abdomen with shifting dullness. Skin examination shows jaundice, erythematous palms, and dilated veins in the anterior abdominal wall. After fluid resuscitation, he is given a drug that decreases portal venous pressure. The drug works by inhibiting the secretion of splanchnic vasodilatory hormones as well as blocking glucagon and insulin release. This drug is a synthetic analog of a substance normally produced in which of the following cells?? A: S cells, B: G cells, C: K cells, D: D cells, E: I cellsn,  <response>: This is a clinical vignette describing a 49-year-old man with alcohol use disorder who presents with signs and symptoms of acute upper gastrointestinal bleeding and likely esophageal varices secondary to alcoholic cirrhosis. The question asks about the cell type that produces the endogenous version of the drug given to treat his portal hypertension and variceal bleeding. From the stem, key facts are:- 49M with alcohol use disorder - Presented with coffee-ground emesis concerning for upper GI bleed- Tachycardia, hypotension - signs of hypovolemic shock- Distended abdomen with shifting dullness - ascites- Jaundice, palmar erythema, dilated abdominal wall veins - stigmata of chronic liver diseasecirrhosis- Given a drug that decreases portal pressure and blocks glucagoninsulin release The drug described is octreotide, a somatostatin analog. Somatostatin is an endogenous hormone normally produced by delta cells D cells in the pancreas and gastrointestinal tract. It inhibits secretion of various hormones including growth hormone, insulin, and glucagon. Octreotide binds to somatostatin receptors and has similar effects, including splanchnic vasoconstriction which reduces portal pressures.Therefore, the correct answer is D cells.D: D cells 