input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 45-year-old woman with hypothyroidism comes to the physician because of progressive fatigue, lethargy, and epigastric pain after eating. Physical examination shows pale conjunctivae. Laboratory studies show decreased serum hemoglobin levels and increased serum gastrin levels. Esophagogastroduodenoscopy shows inflammation of the gastric body and fundus. A photomicrograph of a biopsy specimen taken from the gastric antrum is shown. Which of the following is the most likely cause of this patient's symptoms?   (A) Mucosal cell hyperplasia   (B) Enterochromaffin-like cell hyperplasia   (C) Parietal cell destruction   (D) Chief cell destruction
output: ['(C) Parietal cell destruction <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Mucosal cell hyperplasia  (B) Enterochromaffin-like cell hyperplasia  (C) Parietal cell destruction  (D) Chief cell destruction <> possible answers', "  A 45-year-old woman with hypothyroidism comes to the physician because of progressive fatigue, lethargy, and epigastric pain after eating. Physical examination shows pale conjunctivae. Laboratory studies show decreased serum hemoglobin levels and increased serum gastrin levels. Esophagogastroduodenoscopy shows inflammation of the gastric body and fundus. A photomicrograph of a biopsy specimen taken from the gastric antrum is shown. Which of the following is the most likely cause of this patient's symptoms? <> context"]