Considering the following ERD, which tables and fields (i.e., columns) you don't need to access in order to determine which book titles have been purchased by a customer and when the order shipped? a) Books: ISBN, Title b) Orderitem: Order\#, ISBN c) Orders: Order\#, Customer\#, Shipdate d) None of the above is true Consider the following ERD. If the JustLee Books manager needs to determine which book category generated the most sales in April 2009, which tables and fields would he consult in order to derive this information? a) Books: ISBN, Category b) Orderitem: Order\#, ISBN, Quantity, Paideach c) Orders: Order\#, Orderdate d) All of the above e) only a and c Which of the following represents a one-to-many relationship in an ER model? a) A straight line b) A dashed line c) A straight line with a crow's foot at both ends d) A straight line with a crow's foot at one end