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 Common "Primary" Tumor of Hea is: 
Select and explain. 
A. Rhabdomyoma, B. Fibroma, C. Myxoma, D. Lipoma
C: Myxoma
Answer: C: Myxoma 
Explanation: Myxoma