<prompt> 2 year old child developed sudden bouts of cough, breathlessness and respiratory distress after swallowing coins during playing. Chest x-ray was done. what is the probable diagnosisPneumonia on Right sideObstructive emphysema on left sideBronchiectasisPleural effusion  <response>: Chest x-ray shows increased lucency on left side, suggesting hyperinflated chest on left side. 