[单选] You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was created.) How do you obtain the definition of the view?（）

A . Use the DESCRIBE command on the EMP_DEPT_VU view.
B . Use the DEFINE VIEW command on the EMP_DEPT_VU view.
C . Use the DESCRIBE VIEW command on the EMP_DEPT_VU view.
D . Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.
E . Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.
F . Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.

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[单选] You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was created.) How do you obtain the definition of the view?（）

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