please answer a-e thank you

7.69 pts The university bookstore is ordering textbooks in preparation for the upcoming semester. This is an online class, and student demand for the book is consistent throughout the semester, There will be 500 students taking the class, half (250) of which will order from the bookstore. It costs the bookstore 12% per semester of the book's $120 cost for book that remain in inventory. Placing an order costs $13.50 based on the time it takes an employee to complete and send the order form. a. How many books should the bookstore order at a time! Select) b. What is the annual HOLDING cost? Select ! c. What is the annual ORDERING cost? Select Based on shelf space, the bookstore is limited to having a maximum inventory of this book of 15 copies. d. Based on the shelt space limitation, what is the impact on HOLDING costs compared to the optimal plan (to the nearest dollar)? Select) e. Based on the shelf space limitation, what is the impact on ORDERING costs compared to the optimal plan (to the nearest dollar)? Select