A 65-year-old man presents with painless jaundice, dark urine, pale stools, and weight loss over 2 months. Examination shows a palpable, non-tender gallbladder. What is the most likely diagnosis?AGallstone disease with biliary colicBChronic hepatitis BCPancreatic head carcinomaDGilbert’s syndromeEAcute cholangitisCheck my answer