Trachea bifurcates at the level of:

 # Trachea bifurcates at the level of:

A. C7

B. Lower border of T3

C. Upper border of T4

D. Upper border of T5

The correct answer is D. Upper border of T5.

Trachea begins at C6 and bifurcates at the level of T5. Trachea bifurcates at the level of sternal angle.

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