This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pathology
Most common primary tumor of hea? 
Select and explain. 
A. Myxoma, B. Rhabdomyosarcoma, C. Fibroma, D. Leiomyosarcoma
A: Myxoma
Answer: A: Myxoma 
Explanation: Primary cardiac tumors are uncommon moreover, most also are benign. The descending order of frequency , these are myxomas, fibromas, lipomas, papillary fibroelastomas,rhabdomyomas Myxomas are the most common primary tumor of the adult hea. Robbins 9 th edition page no. 404