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
Acute onset of cough, stridor and respiratory distress in the absence of fever is suggestive of: 
Select and explain. 
A. Foreign body, B. Acute asthma, C. Aspiration Pneumonia, D. Primary complex
A: Foreign body
Answer: A: Foreign body 
Explanation: Ans. A. Foreign bodyImmediate symptoms of foreign body inhalation include choking, coughing, increasing respiratory distress or difficulty in speaking.