SELECT c.Name, p.Title, sc.Quantity, p.eBayExpressPrice, s.Name FROM ShoppingCart sc, Product p, Customer c, Seller s WHERE sc.CustomerID =c.CustomerID AND sc.ItemNumber = p.ItemNumber AND...

SELECT c.Name, p.Title, sc.Quantity, p.eBayExpressPrice, s.Name

 FROM ShoppingCart sc, Product p, Customer c, Seller s

 WHERE sc.CustomerID =c.CustomerID

AND sc.ItemNumber = p.ItemNumber

AND sc.OrderStatus = 'active'

AND c.Country = 'USA'

AND p.SellerID = s.SellerID

Q1 \  Show the operator tree without optimization