This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Which of the following is not a contraindication for resection of head of pancreas 
Select and explain. 
A. Liver metastasis, B. Ascites, C. Retroperitoneal seedings, D. Involvement of major aery
B: Ascites
Answer: B: Ascites 
Explanation: Answer- B. AscitesSigns of unresectability in CA pancreasEncasement/invasion/occlusion of poal vein, sup. mesentric aery or vein.Extension beyond pancreatic capsule.Extension into retroperitoneum.Involvement of nerves/nodes around celiac axis or sup. mesentric aery.Extension beyond hepatoduodenal ligament