Whatpurposewouldyouachievebyenablingtheblockchangetrackingfeature?()

A.Eliminatethenecessityforbackups.

B.Performoptimizedimagecopybackups.

C.Performoptimizedincrementalbackups.

D.Enablecheckpoint（CKPT）toperformcheckpointingateveryblockchange.

E.Enabledatabasewriter（DBWn）towritechangedblockstodatafilesfaster.