Identify the two situations in which the alert log file is updated with details. （）

• A、Running a query on a table returns "ORA-600： Internal Error."
• B、Inserting a value in a table returns "ORA-01722： invalid number."
• C、Creating a table returns "ORA-00955： name is already used by an existing object."
• D、Inserting a value in a table returns "ORA-00001： unique constraint （SYS.PK_TECHP） violated."
• E、Rebuilding an index using ALTER INDEX ...REBUILD fails with an error "ORA-01578： ORACLE data block corrupted （file # 14， block # 50）.