Which programming language is particularly suited for web development and can be embedded into HTML?

PHP is a server-side scripting language specifically designed for web development and can be embedded directly into HTML. This allows developers to create dynamic content that can be processed on the server, with the resulting output being sent to the client's web browser as standard HTML. This integration makes PHP highly effective for tasks like managing forms, handling sessions, and interacting with databases.

In contrast, Java is primarily used for building standalone applications and mobile applications rather than being embedded into HTML. Python, while versatile and increasingly popular for web development through frameworks like Django and Flask, is not inherently designed to be embedded into HTML like PHP. HTML5, on the other hand, is a markup language used to structure and present content on the web, not a programming language with server-side capabilities. Thus, PHP stands out as the correct answer for web development with HTML integration.