You want to migrate your existing non-ASM files to ASM files for the database PROD. Which method or command would you use to accomplish this task？（）

A. the CONVERT command of RMAN

B. Data Pump Export and Import into the same database

C. conventional export and import into the same database

D. the BACKUP DATABASE and RESTORE DATABASE commands of RMAN

E. the BACKUP AS COPY DATABASE and SWITCH DATABASE TO COPY command of RMAN