3.2 A private book collector is designing a database to keep track of her purchase and book holdings. Consider the entity set Book with attributes title, author, publisher, pubDate, numberpages, condition, cost, and datepurchases. (33 pts) a. Show how the entity set and its attributes would be represented on an E-R diagram. You can create this diagram by using a drawing tool at: b. Describe the domain of the cost attribute, making assumptions as needed c. Identify a superkey for the Book entity set d. Identify all candidate keys for the entity set e. Identify a primary key for the entity set and underline it on the E-R diagram