TheDB_BLOCK_CHECKINGinitializationparameterissettoTRUE.Whatwouldbetheresultofthissettingonthedatablocksbeingwrittentothedatafiles,everytimetheDBWnwrites?()

A.TheOracledatabasewillcheckalldatablocksbygoingthroughthedataoneachblock，makingsurethedataisself-consistent.

B.DBWnandthedirectloaderwillcalculateachecksumandstoreitinthecacheheaderofeverydatablockwhenwritingittodisk.

C.TheOracledatabasewillcheckdatablocksbelongingtotheSYSTEMtablespaceonly，bygoingthroughthedataoneachblock，makingsurethedataisself-consistent.

D.TheOracledatabasewillcheckdatablocksbelongingtotheSYSAUXtablespaceonly，bygoingthroughthedataoneachblock，makingsurethedataisself-consistent.

E.TheOracledatabasewillcheckdatablocksintheSYSTEMandSYSAUXtablespacesonly，bygoingthroughthedataoneachblock，makingsurethedataisself-consistent