Which two statements are true about the DUAL table?

Which two statements are true about the DUAL table?
A. It can display multiple rows but only a single column.
B. It can be accessed by any user who has the SELECT privilege in any schema.
C. It can display multiple rows and columns.
D. It consists of a single row and single column of VARCHAR2 data type.
E. It can be used to display only constants or pseudo columns.
F. It can be accessed only by the SYS user.

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