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
Tonsils developed from: 
Select and explain. 
A. Ventral part of 3rd pouch., B. Ventral part of 2nd pouch., C. Dorsal part of 2nd pouch., D. Ventral part of 3rd pouch.
B: Ventral part of 2nd pouch.
Answer: B: Ventral part of 2nd pouch. 
Explanation: None