What’s required to purchase books in Apple School Manager?

In Apple School Manager (ASM), the Administrator role is required to purchase books through the Apps and Books section, as it has permissions to manage financial transactions and content acquisition. Other roles, like Content Manager, can distribute but not purchase. An Apple Developer account (option B) is for apps, not books. A Managed Apple ID (option C) is for users, not purchasing. User acceptance (option D) is irrelevant. The Apple School Manager User Guide confirms the Administrator’s purchasing authority.