In Percussing the Left Cardiac Border,the Nurse Would Expect to Hear

In percussing the left cardiac border,the nurse would expect to hear dullness at the:

A) third left intercostal space midclavicular line and fifth left intercostal space left sternal border.
B) fourth left intercostal space medial to midclavicular line and second left intercostal space midclavicular line.
C) fifth left intercostal space midclavicular line and second left intercostal space sternal border.
D) fifth left intercostal space sternal border and second right intercostal space midclavicular line.