Which of the following best describes the lock protection provided by DB2 for the current row of a cursor?（）

• A、The cursor is only protected from updates and deletes by concurrent applications.
• B、The row is only protected from positioned updates and deletes that reference another cursor of the same application.
• C、The cursor is protected from positioned updates and deletes that reference another cursor of a different application.
• D、The row is protected from updates and deletes by the current application and from positioned updates and deletes that reference another cursor of the same application.