<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A previously healthy 37-year-old woman, gravida 3, para 2, at 29 weeks gestation comes to the physician because of colicky postprandial abdominal pain. Her vital signs are within normal limits. Physical examination shows a uterus consistent in size with a 29-week gestation. Ultrasonography of the abdomen shows multiple 5-mm hyperechoic masses within the gallbladder lumen. Which of the following processes is most likely involved in the pathogenesis of this patients condition?? A: Accelerated gallbladder emptying, B: Decreased caliber of bile duct, C: Increased secretion of bile acids, D: Overproduction of bilirubin, E: Increased secretion of cholesteroln,  <response>: This is a medical question asking about the pathogenesis of gallstones in a pregnant woman. The key details in the stem are that the patient is a previously healthy 37-year-old woman at 29 weeks gestation presenting with colicky postprandial abdominal pain. Ultrasound showed multiple hyperechoic masses in the gallbladder, consistent with gallstones. During pregnancy, increased estrogen levels lead to increased cholesterol secretion and gallbladder stasis, resulting in supersaturated bile and gallstone formation. Of the choices given, increased secretion of cholesterol best explains the pathogenesis of gallstones in this patient.E: Increased secretion of cholesterol 