Which code snippet should a developer use to center a paragraph of text?

The use of the style attribute with "text-align: center" within the paragraph tag is a proper approach for centering text in HTML. This method embraces modern standards of web design that favor CSS for styling over deprecated HTML attributes.

Using CSS through the style attribute allows for greater flexibility and separation of content from presentation. This means that if the design needs to change in the future, adjustments can be made in the CSS without altering the HTML structure itself.

Other methods noted in the choices have limitations or are outdated. The alignment attribute in the first choice has been deprecated in HTML5, and while the second choice effectively utilizes CSS, it is much more advisable to write styles in separate CSS files or style blocks for maintainability and clarity. The third choice, which uses the

tag, is also outdated and not recommended in modern HTML practices. The last choice incorrectly applies the style attribute with an unsupported property.

Thus, the correct method, which effectively centers the text while adhering to modern web standards, is to use the paragraph tag with the style attribute that includes "text-align: center."