This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
The resting membrane potential of cardiac muscle is: 
Select and explain. 
A. -90, B. -60, C. -70, D. All
A: -90
Answer: A: -90 
Explanation: The resting membrane potential of cardiac muscle is:-90 Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:81