The Nurse Is Conducting a Physical Examination of a Patient's

The nurse is conducting a physical examination of a patient's heart. Where will the nurse place the stethoscope to best assess the S1 heart sound?

A) Left midclavicular line at the fifth intercostal space
B) Left sternal border at the fifth intercostal space
C) Right midclavicular line at the fifth intercostal space
D) Right sternal border at the third intercostal space