Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to test a website in internet explorer on a mac for free [title] Install virtualbox on your mac. [step] Virtualbox is a free and open-source virtualization platform that will allow you to run windows on your mac. [title] Open http: // modern.ie in your browser.

Ending1: [step] This is an official microsoft website that allows you to download temporary builds of windows for free, especially for web developers. [title] Select the browser/os combo that you want to test in the virtual machine dropdown. Ending2: [step] You can use any browser on your mac, from safari to google play. [title] Click on " settings " at the top right corner of the mac window. Ending3: [step] You'll find it in the dock, right above the toolbar that contains all your upcoming sites. [title] Click the search box at the top of the screen. Ending4: [step] It should be in the upper-left corner of your screen. [title] Type " plugins " (without quotes).

Answer format: ending1/ending2/ending3/ending4