All of the following are the levels of constrictions of the esophagus, EXCEPT:

There are three major constrictions of the esophagus:1. The cricopharyngeal or pharyngoesophageal constriction (diameters 1.7x2.3 cm)2. The bronchoaoic constriction. Anatomically there are two separate constrictions: the aoic at the level of T4 with diameters of 1.9x2.3 cm, and the bronchial at the level of T5 with diameters of 1.7x2.3 cm3. The diaphragmatic constriction at the level of T9 or T10 with a diameter of 2.3 cm.