You are in the middle of a transaction and very crucial data has been modified. Because of a hardware failure， the instance has shut down before synchronizing all the database files. Which two statements are true？（）

A

On startup， SMON coordinates instance recovery.

B

On startup， CKPT coordinates instance recovery.

C

On startup， use RMAN to perform instance recovery.

D

Uncommitted changes will be rolled back after the database is opened.

E

On startup， perform media recovery and then instance recovery.

F

On startup， all the files will be synchronized and you get both committed and uncommitted data.