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: Medicine
A 55-year-old woman presents with progressively deepening jaundice, uncontrollable pruritus, pain in the abdomen (right upper quadrant) and yellow coloured urine. Investigations revealed - 
Select and explain. 
A. Viral hepatitis, B. Cirrhosis of liver, C. Carcinoma of head of the pancreas, D. Hepatocellular carcinoma
C: Carcinoma of head of the pancreas
Answer: C: Carcinoma of head of the pancreas 
Explanation: None