clinical problem solving for 3rd years

A 23-year-old woman was examined in the emergency departement because of the sudden onset of respiratory distress. The physician was listening to breath sounds over the right hemithorax and was concerned when no sounds were heard on the front of the chest at the level of the tenth rib in the midclavicular line.
The following comments concerning this patient are correct except:
A. In a healthy individual, the lower border of the right lung in the midclavicular line in the midrespiratory position is at the level of the sixth rib.
B. The parietal pleura in the midclavicular line crosses the tenth rib.
C. The costodiaphragmatic recess in situated between the lower border of the lung and the parietal pleura.
D. The lung on extreme inspiration could only dexvend in the costodiaphragmatic recess as far as the eighth rib.
E. No breath sounds were heard because the stethoscope was located over the liver.