Case Study: Waldo BooksWaldo Books needs to decide how many copies of a new hardcover release to purchasefor its shelves. The store has assumed that demand will be 50, 100, 150, or 200 copiesnext month and they need to decide whether to order 50, 100, 150 or 200 books for thisperiod. Each book costs Waldo $20 and can be sold for $30. Waldo can sell any unsoldbooks back to their supplier for $4.a) Which option should Waldo choose if they use the maximax criterion?b) Which option should Waldo choose if they use the maximin criterion?c) Which option should Waldo choose if they use the equally likelycriterion?d) Which option should Waldo choose if they use the minimax regretcriterion?e) Which option should Waldo choose if they use the criterion of realismwith _ = 0.7?