Which technology is used to access the document object model (DOM)?

The correct answer is JavaScript because it is the primary programming language used for manipulating the Document Object Model (DOM). The DOM represents the structure of an HTML document as a tree of objects, allowing developers to access and modify the content, structure, and style of web pages dynamically.

JavaScript provides a range of methods and properties that enable developers to interact with the DOM, such as selecting elements, updating content, adding or removing elements, and changing styles. This ability to manipulate the DOM in real-time allows for the creation of interactive and responsive applications on the web.

In contrast, while Canvas is used for rendering graphics and visualizations on the web, it does not directly access or manipulate the DOM. CSS (Cascading Style Sheets) is mainly focused on styling HTML elements and doesn't handle any interactions with the DOM structure itself. HTML5 defines the structure and content of web pages but does not provide the means to access or manipulate the DOM programmatically. Thus, JavaScript is uniquely suited for this purpose, making it the correct choice.