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
True about pancreatic carcinoma -a) Head is the most common siteb) Pain is the most common symptomc) Obstruction of bile & pancreatic secretion is commond) 80% cases respond well to resection 
Select and explain. 
A. a, B. bc, C. ad, D. ac
D: ac
Answer: D: ac 
Explanation: Pancreatic cancer has a very bad prognosis — with a 5-year survival of only 5%.
Only possible effective tlt is complete surgical resection.
Such curative resection is possible only in 10-15% of patients (usually those individuals with a tumor in the pancreatic head). The 5 year survival rate following such resection is only 10%.