Which of the following statements is true regarding JavaScript and HTML?

The statement that JavaScript can alter HTML content dynamically is accurate and highlights a critical feature of JavaScript in web development. JavaScript is a powerful scripting language that interacts with the Document Object Model (DOM) of a webpage, allowing developers to change the content, structure, and style of web pages while they are being viewed. This dynamic capability means that users can experience interactive features, such as updating text, modifying styles, or adding elements to a webpage without needing to reload the page.

For instance, using JavaScript, a developer can alter the inner HTML of an element, add new elements to the document, or even remove existing ones based on user interactions like clicks or form submissions. This dynamic manipulation is essential for creating responsive and interactive web applications that enhance user experience.

Other options, while they touch on aspects of JavaScript and HTML, do not accurately capture the nature of JavaScript's capabilities. Some imply limitations or misunderstandings about the relationship between the two languages in the context of web development. JavaScript indeed complements and enhances HTML, rather than being limited to only static HTML or replacing it.