This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pediatrics, environment and nutrition, Subject name: Pathology
Not seen in children is 
Select and explain. 
A. Neuroblastoma, B. Retinoblastoma, C. Hepatoblastoma, D. Seminoma
D: Seminoma
Answer: D: Seminoma 
Explanation: Seminoma, the most common GCT in adults, does not occur before 5 years of age. seminoma is considered a postpubeal tumor.