Final answer:
The heart can be heard in the ROA position by listening to the left side of the chest.
Step-by-step explanation:
The correct answer is D. Left side of the chest. The heart is located within the thoracic cavity, mediately between the lungs. The left side of the chest is where the heart is situated, so if you place a stethoscope on the left side of the chest, you will be able to listen to the heart sounds. It is important to remember the position and orientation of the heart when conducting a physical examination and auscultating for heart sounds.