About the left coronary artery, which of the following descriptions are correct?
选项：

A:It arises from the posterior aortic sinus.
B:It emerges between the root of the pulmonary trunk and the left auricle.
C:Its main branches are anterior and poterior interventricular branches.
D:Th eanterior interventricular branch is accompanied by the great cardiac vein.
E:The left coronary artery distributes to the anterior two thirds of the interventricular septum.