What are the prerequisites for converting the single-instance database to an Oracle RAC database?

You are managing a single-instance database and your company wants to convert the single instance database to an Oracle RAC database. You plan to use the rconfig utility to accomplish this task.

What are the prerequisites for converting the single-instance database to an Oracle RAC database?

A.
Oracle Clusterware and Oracle Database software are installed on all target nodes.

B.
The Oracle Database binary is enabled for Oracle RAC on all target nodes.

C.
The database being converted has been backed up successfully.

D.
Oracle Clusterware is stopped.

E.
Automatic Storage Management (ASM) must be enabled and the ASM disk should be available on all nodes.