This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
[{'content': 'Commonest association seen in carcinoma Gallbladder \nSelect and explain. \nA. Peritoneal deposits, B. Duodenal infiltration, C. Secondaries to liver, D. Cystic node involvement', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Metastasis in Carcinoma Gallbladder Direct hepatic invasion :59% cases Lymph node metastasis : 45%cases Perineural invasion: 42% cases Ref: Sabiston 20th edition Pgno : 1512-1514', 'role': 'assistant'}]