This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of Larynx, Subject name: ENT
[{'content': 'Bifurcation af trachea takes place at - \nSelect and explain. \nA. T2 - T5, B. C6 - C7, C. C3 - C4, D. T10 - T11', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., T2-T5o Bifurcation of Trachea occurs at T4-T5 intervertebral disc level. Which corresponds anteriorly to sternal angle (manubrio-sternal junction).StructureCervico thoracic levelTracheal bifurcationT4-T5Arch of aortaBegins and ends at T4Xiphoid processT9Splenic axisAlong 10th ribCarotid bifurcation. Hyoid boneC3Upper border of thyroid cartilageC4Level of cricoids cartilage06 Lumbar levelCeliac trunkT12-L1Superior mesenteric arteryLITranspyloric planeLower border of LITermination of spinal cordLower border of LI in adults and upper border of L3 in newbornPancreasL1-L2Left renal veinL2Inferior mesenteric artery'13UmbilicusL3Aortic bifurcationL4Transtubercular planeL5Common iliac ends atL5-S1", 'role': 'assistant'}]