Question:Where should sub queries be used? 

A To define the set of rows to be inserted in a table 

B To define the set of rows to be included in a view 

C To define one or more values to be assigned to existing rows 

D To provide values for conditions in the Where clause 

E To define a table to be operated on by a containing query 

F All of the above are correct 

G None of the above is correct 

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