During the precordial assessment on an patient who is 8 months pregnant,the nurse palpates the apical impulse at the fourth left intercostal space lateral to the midclavicular line.This finding would indicate:
A) right ventricular hypertrophy.
B) increased volume and size of the heart as a result of pregnancy.
C) displacement of the heart from elevation of the diaphragm.
D) increased blood flow through the internal mammary artery.