Ausersendsyouanemailwiththefollowingerrormessage：createtableidtable（idnumber）*ERRORatline1：ORA-01110：datafile4：，，/oracle01/oradata/orcl/users01.dbfORA-27041：01116：errorinopeningdatabasefile4ORA-unabletoopenfileLinuxError：2：NosuchfileordirectoryAdditionali

Ausersendsyouanemailwiththefollowingerrormessage：createtableidtable（idnumber）*ERRORatline

1：ORA-01110：datafile4：，，/oracle01/oradata/orcl/users01.dbfORA-27041：01116：errorinopeningdatabasefile4ORA-unabletoopenfileLinuxError：

2：NosuchfileordirectoryAdditionalinformation：

3Youcanchoosefromthefollowingsteps：

a.Restorethemissingdatabasedatafiles.

b.Takethemissingdatafileoffline.

c.Shutdownthedatabase.

d.IssuetherecovertablespaceUSERScommand.

e.IssuetheStartupMountcommandtomountthedatabase.

f.BringtheUSERStablespaceonline.

g.Issuethealterdatabaseopencommand.

Whichisthecorrectorderofthesestepsinthiscase？（）