This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
Most common cause of infant morntality? 
Select and explain. 
A. LBW, B. Injury, C. A, D. Tetanus
C: A
Answer: C: A 
Explanation: Most common cause of Infant moality is upper respiratory tract diseases. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 522