Which of the following ABAP language elements are mandatory for the implementation of a method as an ABAP Managed Database Procedure? 3 ans

Which of the following ABAP language elements are mandatory for the implementation of a method as an ABAP Managed Database Procedure? 3 ans
A . FOR db (db = HD
B . ..)
C . LANGUAGE dbjang (dbjang = SQLSCRIP
D . ..)
E . BY DATABASE PROCEDURE
F . CLIENT SPECIFIED
G . AUTHORIZATION db_auth (db_auth = SYSTE
H . ..)

Answer: A,B,C