Which the DBMS_SQL package is the only applicable method of processing dynamic SQL. (Choose all that apply.)

Identify situations in which the DBMS_SQL package is the only applicable method of processing dynamic SQL. (Choose all that apply.)
A. When a query returns multiple rows
B. When a column name in a where clause is unknown at compile time.
C. When the number of columns selected in a query is not known until run time
D. When a table needs to be created based on an existing table structure at run time
E. When privileges need to be granted to a new user to access an existing schema at run time

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