<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 64-year-old man presents to the outpatient clinic because of abdominal pain. He reports that for the last few months, he has had postprandial pain that is worsened by spicy foods. He states that the pain is often located in the right upper portion of his abdomen and feels like its traveling to his shoulder blade. These episodes are sporadic and unpredictable. He denies any fevers. Physical examination shows no abnormalities. Abdominal ultrasound is shown. Which of the following is the best treatment for this condition?? A: Cholecystectomy, B: Endoscopic retrograde cholangiopancreatography ERCP, C: Magnetic resonance cholangiopancreatography MRCP, D: Ketorolac, E: Ursodeoxycholic acid,  <response>: This is a clinical case of a 64-year-old man with postprandial right upper quadrant abdominal pain that radiates to his shoulder blade. The pain is worsened by spicy foods. The abdominal ultrasound image shows gallstones. Based on the clinical presentation and imaging, this patient most likely has symptomatic cholelithiasis gallstones. The postprandial pain and radiation to the shoulder suggests biliary colic from obstruction of the cystic duct by gallstones. Spicy foods precipitate symptoms by stimulating gallbladder contraction. Option A, cholecystectomy surgical removal of the gallbladder, is the definitive treatment for symptomatic cholelithiasis. Options B and C ERCP and MRCP are diagnostic tests, not treatments. Option D ketorolac is a NSAID that can help manage pain but does not treat the underlying condition. Option E ursodeoxycholic acid can help dissolve small gallstones but is not definitive treatment.A: Cholecystectomy 