Evaluate the following command: SQL>ALTER SYSTEM SET db_securefile = 'IGNORE'; What is the impact of this setting on the usage of SecureFiles?（）

• A、It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB
• B、It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB
• C、It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB
• D、It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile