Examine this command:
SQL>STARTUP FORCE
ORACLE instance started .
Total System Global Area 5117049968 bytes
Fixed size 9038960 bytes
Variable size 922746880 bytes
Database Buffers 4177526784 bytes
Redo Buffers 7737344 bytes
Database mounted
Database opened .
Now examine these steps:
-1.Oracle instance is started.
-2.The control file is read.
-3.Instance recovery is started.
-4.Datafiles and redo log files are opened.
-5.The spfile or pfile is read.
-6.The database is available for use .
-7.The database is mounted .
-8.Instance recovery is completed.
Identify the steps that were executed in the correct order to open the database: