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
Which of the following has propensity to metastasize through lymph nodes ? 
Select and explain. 
A. Alveolar rhabdomyosarcoma, B. Osteosarcoma, C. Both, D. None
A: Alveolar rhabdomyosarcoma
Answer: A: Alveolar rhabdomyosarcoma 
Explanation: Ans. is 'a' i.e., Alveolar rhabdomyosarcoma