Mark the hotspot in the MIDDLE of the blue box. There may be more blue boxes (options) than listed. Hot Spot Items Item 1 thoracic aorta Item 2 celiac A. Item 3 internal iliac A. Item 4 common iliac A?
 1) thoracic aorta
 2) celiac A.
 3) internal iliac A.
 4) common iliac A