Examine the description of the PRODUCTS table:Which three queries use valid expressions? (Choose three.)

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Examine the description of the PRODUCTS table:Which three queries use valid expressions? (Choose three.)

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A. SELECT product_id, unit_price, S "Discount", unit_price + surcharge - discount FROM products;
B. SELECT product_id, (unit_price * 0.15 / (4.75 + 552.25)) FROM products;
C. SELECT product_id, (expiry_date - delivery_date) * 2 FROM products;
D. SELECT product_id, unit_price || 5 "Discount", unit_price + surcharge - discount FROM products; E. SELECT product_id, expiry_date * 2 FROM products; F. SELECT product_id, unit_price, unit_price + surcharge FROM products;