This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pediatrics
Bronchitis in children is caused by 
Select and explain. 
A. H. influenzae, B. R.S.V, C. Myocoplasma, D. E B V
A: H. influenzae
Answer: A: H. influenzae 
Explanation: Breathing tubes (bronchi) in the lungs. In children, the most common cause of acutebronchitis is a virus. A cough, fever, runny nose, and body aches are common symptoms. Reference: GHAI Essential pediatrics, 8th edition