A nurse is preparing to percuss an adolescent's chest and abdomen. Which of the following areas should the nurse expect to hear a dull sound? (You will find hot spots to select in the artwork below. Select only the hot spot that corresponds to your answer.)

A. This region of the chest is expected to be resonant on percussion because of the air in the lung. B. The right upper quadrant of the abdomen is usually dull on percussion because of the underlying liver. C. This site is tympanic because of the gas in the intestines.