This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Which is first and commonest clinical manifestation of Epidemic dropsy - 
Select and explain. 
A. Bilateral swelling of legs, B. Gastroointestinal upsets, C. Cardiac decomposition, D. Sarcoid
A: Bilateral swelling of legs
Answer: A: Bilateral swelling of legs 
Explanation: Symptoms of epidemic dropsy consist of sudden non inflammatory bilateral swelling of legs. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 608