During the installation of an SAP ECC 6.0 system, which of the following components can be installed in a separate installation procedure? There are 2 correct answers to this question.

During the installation of an SAP ECC 6.0 system, which of the following components can be installed in a separate installation procedure? There are 2 correct answers to this question.
A . The central instance
B . The database instance
C . The message server

Answer: A,B