Given the following RMAN commands，choose the option that reflects the order required to restore your currently operational ARCHIVELOG-mode database.（）   a. restore database  b. recover database  c. shutdown immediate  d. startup  e. restore archivelog all f. alter database open 

• A、 a， b， c， d， e， f
• B、 c， b， a， d， e， f
• C、 c， b， a， d， f
• D、 c， a， b， d
• E、 c， a， e， b， d， f