Exhibit： View the Exhibit.  Your Oracle 10g database has 6 tablespaces in which：  -TEMP is the default temporary tablespace  -UNDOTBS1 is the default undo tablespace  -USERS is the default permanent tablespace  In this database， which two tablespaces can be made read only？（）

• A、TEMP
• B、PROD
• C、USERS
• D、SYSAUX
• E、SYSTEM
• F、UNDOTBS1