In case of pneumothorax -: (A) Cavity in lung, (B) Air fills in pleural space, (C) Pus fills in pleural space, (D) Blood in pleural space
Answer is B. Ans. is 'b' i.e., Air fills in pleural space * Pneumothorax- Air in pleural cavity* Empyema- Pus in pleural cavity* Hemothorax- Blood in pleural space* Hydrothorax- Fluid in pleural cavity