Examine this command: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: