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: Pediatrics
[{'content': 'Commonest tumor of face in children is : \nSelect and explain. \nA. Rhabdomyosarcoma, B. Sq. cell carcinoma, C. Basal cell carcinoma, D. Mixed parotid tumor', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Rhabdomyosarcoma :\n\nThe most common soft tissue sarcoma in children is rhabdomyosarcoma.\nThe common site of involvement are : -\n\t\nHead & Neck (25%) 2nd\xa0most common Extremities.\nGenitourinary (22%) 2nd most common\xa0Retroperitoneum.\nRhabdomyosarcoma is the most common nonocular orbital tumor is young children.', 'role': 'assistant'}]