This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vermiform Appendix, Subject name: Surgery
All are true about appendicitis except. 
Select and explain. 
A. Pain on flexion and external rotation, B. Pain on flexion and internal rotation, C. Pain in right illiac fossa on deep palpation of left iliac fossa, D. Right illiac fossa tenderness
A: Pain on flexion and external rotation
Answer: A: Pain on flexion and external rotation 
Explanation: Ans A. Pain on flexion and external rotation