<prompt> A 4-year-old child presents to the emergency department with respiratory difficulty and noisy breathing. On examination, X-ray shows thumb sign. The most probable diagnosis is:Recurrent papillomatosisCroupEpiglottitisTonsillitis  <response>: c. EpiglottitisRef: Ghai Pediatrics 8e p 376, 398; Nelsons 20e p 2032-2034The given clinical picture along with the X-ray finding suggests a diagnosis of Acute Epiglottitis. 