Ugh, this question is so easy, a caveman could answer it. Of course, AJAX uses the XMLHttpRequest object to update the page without a full refresh. Anyone who's been living under a rock for the past decade would know that.
Hmm, I thought AJAX was all about making the page look prettier or something. Guess I need to brush up on my AJAX knowledge. Oh well, at least I can still use it to make my cat videos load faster, right?
AJAX uses the XMLHttpRequest object to asynchronously communicate with the server without having to reload the entire page. That's the whole point of AJAX, right? Option A is clearly the correct answer here.
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