Identify the required steps in the correct order.

You are required to migrate your 11.2.0.3 database to an Oracle 12c database. Examine
the list of steps that might be used to accomplish this task: 1.Place all user-defined
tablespaces in read-only mode on the source database. 2.Use the RMAN convert command
to convert data files to the target platform’s endian format, if required. 3.Perform a full
transportable export on the source database with the parameters VERSI0N=I2,
TRANSPORTABLE=ALWAYS, and FULL=Y. 4. Transport the data files for all the
user-defined tablespaces. 5. Transport the export dump file to the target database.
6.Perform an import on the target database by using the full, network_link, and
transportable_datafiles parameters. 7.Perform an import on the target database by using
the full and transportable_datafiles parameters. Identify the required steps in the correct
order.

A.
1, 3, 5, 4, 2, and 6

B.
1, 2, 4, 6, 5, 3, and 7

C.
1, 2,4, and 7

D.
2, 4, 5, 6, and 7