13) A fully normalized database is called A) first normal form (1NF). B) second normal form (2NF). C) third normal form (3NF). D) forth normal form (4NF). 14) Which of the following would not be one of the well-structured tables in a well-designed relational database used to generate this sales invoice? INVOICE Alpha Oruega Blechts 21131 Bredde St. 063105-2011 SW Ship Salesperson A) B) C) Customer Order Customer Sales Sales Order D) 15) Which of the following would not be true about the well-structured tables in a well-designed relational database used to generate this sales invoice? INVOKE Alpha Omega Blechts 1831 eded St. L , 63105-2311 Sold Skip to May Here Pay this 420080 A) Quantity would be generated from the Sales table. B) 34567 would be a primary key in the Sales table. C) Unit Price would be generated from the Inventory table. D) Hardware City is an example of a non-key data value in the Customer table. 16) Suppose a relational database contained two linked tables. Which of the following items is not necessarily present in the database? A) Two primary keys Two foreign keys C) At least one column D) One foreign key B) Page Break 17) Suppose a relational database contained two linked tables. Assuming the organization wants the database to be normalized, which of the following items represents a problem to normalization? A) The database contains only one primary key. B) The database contains two foreign keys. C) The database contains two primary keys. D) The database contains only one foreign key