This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Intercalated disc is present in: 
Select and explain. 
A. Cardiac muscle, B. Smooth muscle, C. Skeletal muscle, D. All
A: Cardiac muscle
Answer: A: Cardiac muscle 
Explanation: A. i.e. Cardiac muscle