During rapid deceleration trauma, such as from a vehicular collision, where is an aortic dissection most likely to occur?
1) Inferior abdominal aorta above the aortic bifurcation
2) Proximal ascending aorta near the aortic root
3) Descending thoracic aorta adjacent to the ligamentum arteriosum
4) Curvature of the aortic arch near the common carotid arteries