This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sarcoidosis, Subject name: Medicine
60-year-old male known case of sarcoidosis is referred to cardiology unit of the teiary health care centre from the respiratory clinic. Which of the following finding is involved in cardiac sarcoidosis ? 
Select and explain. 
A. First-degree heablock, B. Dilated cardiomyopathy, C. Echo features suggestive ofARVC, D. All of theabove
D: All of theabove
Answer: D: All of theabove 
Explanation: Cardiac Sarcoidosis : Diffuse granulomatous involvement- Ejection fraction <10%. Patchy cardiac involvement - Arrhythmias Atrioventricular (AV) node is infiltrated- Hea block Ventricular tachycardia- Sudden death Dilated/hyperophic cardiomyopathy Echo features suggestive of Arrhythmogenic right ventricular cardiomyopathy