Which statement about the Document Object Model (DOM) is true?

Which statement about the Document Object Model (DOM) is true?

• A. The DOM is used to style documents using CSS
• B. The DOM is a protocol for transferring HTML documents
• C. The DOM is a server-side API
• D. The DOM provides a standard interface so you do not need to develop multiple versions of your scripts tailored for each browser

Answer: (D)

The Document Object Model is a standard set of interfaces exposed by browsers that represents a web page as a hierarchical tree of objects. This common API lets you use JavaScript to access and modify the page’s structure, content, and attributes—finding elements, reading or changing their values, adding or removing nodes, and responding to events. Because the DOM is standardized across major browsers, you can write a single set of scripts that work across different environments, reducing the need to tailor code for each browser. While CSS handles presentation, you can use the DOM to alter an element’s style properties, but the DOM itself isn’t a styling language. It’s not a protocol for transferring documents, nor a server-side API—the DOM operates in the client-side environment provided by the browser.