790.5 is the correct choice just see the description of Liver function test
Hepatic function panel This panel must include the following: Albumin (82040), Bilirubin, total (82247), Bilirubin, direct (82248), Phosphatase, alkaline (84075), Protein, total (84155), Transferase, alanine amino (ALT) (SGPT) (84460), Transferase, aspartate amino (AST) (SGOT) (84450)
and again see the 790.5 description you will find the correct way why this is the correct choice for that