About lesser omentum, which of the following is true?
A.
it extends from the hepatic porta to the lesser curvature of the stomach
B.
the common bile duct,the hepatic portal vein and the the proper hepatic artery pass through the free left border
C.
the free right border of lesser omentum forms the anterior border of the omental foramen
D.
the common bile duct is situated posterior to the hepatic portal vein and the proper hepatic artery