Q107 View the Exhibit and examine the description of the tables

Q107 View the Exhibit and examine the description of the tables.

You execute this SQL statement:

Which three statements are true?

(A). The statement will fall if a row already exists in the sales table for product 23.
(B). The sales table has five foreign keys.
(C). A product can have a different unit price at different times.
(D). A customer can exist in many countries.
(E). The statement will execute successfully and a new row will be inserted into the sales table.
(F). The statement will fail because a subquery may not be contained in a values clause.

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