Which feature is provided in the Salesforce Lightning Design System (SLDS) for designers and developers?

The study guide identifies B. Semantic and accessible component markup as the correct answer. SLDS is a design system that provides resources for creating interfaces aligned with Salesforce's visual and interaction conventions. In the context of this question, its relevant contribution is component markup designed around semantic structure and accessibility considerations. Semantic markup is important because the structure of an interface conveys meaning beyond its visual appearance. Properly structured controls, labels, states, and component relationships can be interpreted more reliably by browsers and assistive technologies. Option A is incorrect within the study guide's framing because SLDS itself is not simply a library of Lightning Web Components. The system provides design specifications, patterns, markup, styling, and associated guidance that can be applied when developing components. Option C describes JavaScript modules and plugins rather than the core SLDS resource identified by the answer key. This question reinforces the distinction between a design system and a component runtime framework. SLDS provides the standards and building blocks that support consistent interface implementation. For custom development, using its semantic and accessible markup patterns helps preserve Salesforce UX conventions while reducing the risk of inconsistent component behavior.

Study Guide reference/topics: SLDS, semantic markup, accessibility, component patterns, Salesforce Lightning Design System.

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