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: Anatomy
Parathyroid 4 means: 
Select and explain. 
A. Inferior parathyroid., B. Superior parathyroid., C. Ultimobranchial pouch., D. None.
B: Superior parathyroid.
Answer: B: Superior parathyroid. 
Explanation: None