The DB_BLOCK_CHECKING initialization parameter is set to OFF. 数据库块检测初始化参数被设定为关  Which block checking would be performed?（）

AThe Oracle database will perform block checking for the index blocks only 

BThe Oracle database will not perform block checking for any of the data blocks 

CThe Oracle database will perform block checking for the default permanent tablespace only 

DThe Oracle database will perform block checking for the data blocks in all user tablespaces 

EThe Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only Oracle