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
All are true about pulmonary embolism,except - 
Select and explain. 
A. Chest pain is the most common symptom, B. Most commonly presents within 2 weeks, C. More is the survival time, more is the chance of . recovery, D. Arises from leg veins
A: Chest pain is the most common symptom
Answer: A: Chest pain is the most common symptom 
Explanation: None