The database is currently open and the temp03.dbf tempfile belonging to the default temporarytablespace TEMP has been corrupted.  What steps should you take to recover from this tempfile loss in an efficient manner？（）  

A.Allow the database to continue running，drop the TEMP tablespace，and then re-create it with new tempfiles

B.Shut down the database， restore and recover the tempfile from backup，and then open the database with RESETLOGS

C.Allow the database to continue running，take the TEMP tablespace offline，drop the missing tempfile，and then create a new tempfile

D.Allow the database to continue running，add a new tempfile to TEMP tablespace with a new name，and drop the tempfile that has been corrupted