A nurse is caring for a client who is postoperative following a mitral balloon valvuloplasty. Which of the following areas should the nurse auscultate to assess the mitral area of the heart?

The second intercostal space at the right sternal border.

The second intercostal space at the left sternal border.

The fifth intercostal space at the left midclavicular line.

The fourth intercostal space at the left sternal border.