PpSTLeR42341 PpSTLeR42341 Today at 12:33 AM Biology Answered To best hear the sounds of the pulmonary semilunar valve, the stethoscope should be placed parasternally over the...a. Right 2nd intercostal spaceb. Left 2nd intercostal spacec. Left 4th/5th intercostal spaced. Right 3rd intercostal space