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
Ectopic site of normal tissue is known as- 
Select and explain. 
A. Choristoma, B. Hamartoma, C. Pseudotumor, D. Lymphoma
A: Choristoma
Answer: A: Choristoma 
Explanation: None