Electronic materials and services made available by the library, including e-books, databases, and online journals.

• A. Digital resources
• B. Serials
• C. OPAC
• D. Reference materials

Answer: (A)

Digital resources is the term that best fits the idea of the library’s electronic materials and services. It encompasses everything you can access online through the library—e-books, online databases, and journals—since all of these are delivered and used in a digital format rather than as physical items. This broader category helps capture not only the content itself but the way it’s accessed and managed, often with features like remote access and centralized search.

Think of it as opposed to serials, which refers specifically to ongoing publications like journals and magazines and doesn’t by itself cover e-books or databases. OPAC refers to the library’s online catalog used to find items, not the actual electronic resources themselves. And reference materials are a type of content used for quick lookups (like dictionaries or encyclopedias), which is a narrower, content-focused label. Digital resources, by contrast, covers all these electronic materials and the services that support them.