<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 36-year-old primigravid woman at 34 weeks gestation comes to the physician because of a 1-week history of upper abdominal discomfort, nausea, and malaise. She had a mild upper respiratory tract infection a week ago. She has a 10-year history of polycystic ovarian syndrome and a 3-year history of hypertension. Her medications include metformin, labetalol, folic acid, and a multivitamin. Her pulse is 92min, respirations are 18min, and blood pressure is 14784 mm Hg. Examination shows a nontender uterus consistent in size with a 34-week gestation. There is mild tenderness of the right upper quadrant of the abdomen. The fetal heart rate is reactive with no decelerations. Which of the following is the most appropriate next step in management?? A: Serum bile acid levels, B: Stool antigen assay for H. pylori, C: HBsAg and IgM anti-HBc serology, D: Reassurance and follow-up, E: Serum transaminase levels and platelet count,  <response>: This is a question about a pregnant woman at 34 weeks gestation who is presenting with upper abdominal discomfort, nausea, malaise and mild tenderness in the right upper quadrant. The key findings are the symptoms of nausea and RUQ tenderness in the setting of a recent URI. The main differential diagnosis is acute cholecystitis vs viral hepatitis vs HELLP syndrome. Cholecystitis would explain the RUQ pain. Viral hepatitis could cause the nausea and malaise. HELLP needs to be ruled out given she has hypertension and is pregnant. The next step should be to check LFTs and platelet count to assess for HELLP syndrome or viral hepatitis. E: Serum transaminase levels and platelet count 