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: Radiology
Popcorn calcification is characteristically seen in – 
Select and explain. 
A. TB, B. Metastasis, C. Pulmonary hamartoma, D. Fungal invagination
C: Pulmonary hamartoma
Answer: C: Pulmonary hamartoma 
Explanation: Popcorn calcification is characteristic of hamartoma.