This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oncology, Subject name: Medicine
Most common malignant tumor of heart in children is- 
Select and explain. 
A. Rhabdomyoma, B. Rhabdomyosarcoma, C. Angiosarcoma, D. Lipoma
B: Rhabdomyosarcoma
Answer: B: Rhabdomyosarcoma 
Explanation: Ans is 'b' i.e. Rhabdomyosarcoma o Primary malignant cardiac tumors in children are almost exclusively sarcomas.o Located in the right side of the heart, atrial septum, right atrial wall, or root of the pulmonary artery.