Could someone please help me or guide me on how to put this in 1nf, 2nf and 3nf. * Primary Key *Foreign Key Customer: (Customer No, Firstname, Surname, DoB, Address Line, Town, Postcode, TelephoneNo, MobileNo, Email Address, Password, Registration Date) Dvd’s: (Dvd ID, Product ID, Title, Category, Certificate Rating, Quantity, Price) [Rentals: (Rental No, CustomerNo, Dvd ID,Copy No, Date Rented, Date Due Back, Price, Date Returned, Fine, Fine Paid, Total) Cd’s: (Cd ID, ProductID, Title, Artist, Genre, Quantity, Price) Cd Sales: (Sales No, Cd ID, CustomerNo, Price, Quantity, Total Purchase, Payment Method, Date) Product: (Product ID, Product Description, Supplier ID) Supplier: (Supplier ID, Supplier Name, Address Line, Town, Postcode, Telephone No, Product Description) Staff: (StaffID,EmpFirstname, EmpLastname, DOB, Address Line, Town, Telephone No, Mobile No, Email Address, EmpPassword, EmpAccess, Role) Receipt of Payment: (Receipt No, Sales No, Customer No, Staff ID, Payment Method, Date, Amount) Refund: (Refund No, Reciept No, CdID, RefundPrice, RefundDate, Refunded)