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
Serum amylase level is raised in A/E 
Select and explain. 
A. Blocked salivary duct, B. Ruptured ectopic, C. Appendicitis, D. Pancreatitis
C: Appendicitis
Answer: C: Appendicitis 
Explanation: None