What is used to supply the SENTINEL operator with a technical manual electronically?

The correct choice is the Interactive Electronic Technical Manual (IETM). IETMs are specifically designed to provide users with interactive, user-friendly access to technical information and operational procedures. This format enables operators to find information quickly and efficiently, often including features like hyperlinks, search capabilities, and multimedia elements such as videos and animations.

The IETM enhances the training and operational readiness of the SENTINEL operator by providing timely access to updated information and resources in a format that facilitates easy navigation and understanding. This modern method of delivering technical content improves learning and comprehension, making it an essential tool for operators who must rapidly acquire knowledge about complex systems like those within the Air Defense Battle Management System.

Other options, while related to the delivery of technical content, do not provide the same level of interactivity and accessibility as the IETM.