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
Parafollicular 'C' cells develop from: 
Select and explain. 
A. Parafollicular 'C' cells develop from:, B. Second branchial cleft, C. Ultimobranchial body, D. Third branchial pouch
C: Ultimobranchial body
Answer: C: Ultimobranchial body 
Explanation: C. i.e. Ultimobronchial body