Among the customers whose first name is Cameron, who bought the product in the most quantity?
most quantity refers to MAX(Quantity); who refers to FirstName, LastName;
SELECT T1.FirstName, T1.LastName FROM Customers AS T1 INNER JOIN Sales AS T2 ON T1.CustomerID = T2.CustomerID WHERE T1.FirstName = 'Cameron' ORDER BY T2.Quantity DESC LIMIT 1