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: ENT
Bifurcation of trachea takes place at - 
Select and explain. 
A. T4 - T5, B. C6 -C7, C. C3 - C4, D. T10 - T11
A: T4 - T5
Answer: A: T4 - T5 
Explanation: None