Which p element does the querySelector() method access?

<html> <body> <p class="prompt">First paragraph</p> <p class="second">Second paragraph</p> <p class="prompt second">Third paragraph</p> <script> var el = document.querySelector(".second.prompt"); el.innerHTML = "Paragraph changed"; </script> </body> </html>]]>The third p elementThe second p element

The third p element.