Which method can be used to select an element by its ID in JavaScript?

The method to select an element by its ID in JavaScript is getElementById(). This is a built-in function provided by the Document Object Model (DOM) that allows developers to access an HTML element directly by its unique ID. When you use this method, you provide the ID as a string argument, and it returns the first matching element within the document.

For example, if your HTML has an element with the ID "myElement", you would retrieve it in JavaScript using document.getElementById("myElement"). This is a fundamental and commonly used technique in JavaScript for DOM manipulation, as IDs should be unique within a page.

The other options listed are not recognized methods in standard JavaScript for selecting elements by ID. This emphasizes the importance of familiarity with the specific API methods available in the language.