Multiple choice technology How Many arguments are taken by XMLHttpRequest object's open() method 2 1 3 4 Reveal answer Fill a bubble to check yourself C Correct answer Explanation XMLHttpRequest's open() method takes 3 arguments: 1) HTTP method (GET/POST), 2) URL, 3) async boolean (optional but commonly used). Some implementations accept a 4th (username) and 5th (password), but 3 is the standard count.