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 tumours have an increase delevation of placental alkaline phosphatase in the serum as well as a positive immunohistochemical staining for placental alkaline phosphatase? 
Select and explain. 
A. Seminoma, B. Hepatoblastoma, C. Hepatocellular carcinoma, D. Peripheral neuroectodermal tumour
A: Seminoma
Answer: A: Seminoma 
Explanation: . Seminoma