A book that sounds just perfect for me, Kate Raworth's Doughnut Economics is available on Amazon for 540.35 for the hardback and $15.99 for paperback. From the publisher's perspective, the difference in the cost between each version of the book seems negligible; it may cost a little bit more to produce the hard cover, but certainly not more than 2.5 times as much. Hardback versions usually also get published a few months before paperback versions are published. How do you explain the different prices for essentially the same product, given that the cost to the publisher of providing each type of book is basically the same? Select one: O a. The publisher can price discriminate between buyers since people who are excited about the book are more likely to pay the premium for a hardback book that is published sooner, and demanders who are not as excited about the book are more likely to wait for the cheaper paperback price. O b. The publisher has created a "cost-plus" price policy: the "cost" of paying the author (Raworth) is constant and set in the original contract, and the "plus" is the cost associated with the paper and cover (hard or paper) for each copy of the book that is sold, which may vary depending on how popular the book is. O c. The publisher is bundling the two versions of the book together, since high demanders are more likely to purchase both versions of the book, whereas low demanders are more likely to purchase only one version of the book. O d. The publisher is engaging in block pricing, since it knows that the hardback buyers are a smaller group, and thus each buyer has a smaller level of demand for the book. The paperback buyers are a larger group, and thus each person has a larger demand for the book