Which statement is true regarding the outcome of this query?

See the Exhibits and examine the structures of PRODUCTS, SALES and CUSTOMERS
table: You issue the following query: Which statement is true regarding the outcome of this
query?

A.
It executes successfully

B.
It produces an error because all columns used in the NATURAL join should have a
qualifier

C.
It produces an error because the NATURAL join can be used only with two tables

D.
It produces an error because a column used in the NATURAL join cannot have a qualifier