Answer: A) The document object represents a single HTML document.
The statement "The document object represents a single HTML document" is true. In JavaScript, the document object represents the entire HTML document within a web page. It provides access to the various elements and content on the page, allowing you to manipulate and interact with them using JavaScript. The document object is a fundamental part of the Document Object Model (DOM), which is a programming interface for web documents and represents the page's structure, content, and presentation.