This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Circulation, Subject name: Physiology
The epicardium is one of the three layers of the hea. It is: 
Select and explain. 
A. Continuous with the endocardium., B. Also known as the visceral pericardium., C. Composed of modified cardiac muscle cells., D. Capable of increasing intraventricular pressure.
B: Also known as the visceral pericardium.
Answer: B: Also known as the visceral pericardium. 
Explanation: The pericardium is a fibroserous sac that encloses the hea. The innermost layer of the pericardium, the epicardium, is also known as the visceral pericardium.