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: Pathology
The ultrastructural finding seen in case of paraganglioma is: 
Select and explain. 
A. Deposition of glycogen, B. Enlarged mitochondria, C. Shrunken mitochondria, D. Dense core granules
D: Dense core granules
Answer: D: Dense core granules 
Explanation: . Dense core granules