Automatic data conversion will occur if which of the following happens？（）

• A、 The client and server have different NLS_LANGUAGE settings
• B、 The client and server character sets are not the same，and the database character set is not a strict superset of the client character set
• C、 The client and server are in different time zones
• D、 The client requests automatic data conversion
• E、 The AUTO_CONVERT initialization parameter is set to TRUE