The correct answer to the question “Which Selenium component supports all Operating System” is option ©. Selenium WebDriver. As Selenium WebDriver is a component of Selenium that functions as a browser automation framework that deals with commands in the browser and does support various OSes like Windows, Linux, macOS, Solaris. If you are someone who wishes to learn Selenium, then I would highly recommend you to check out the Selenium training from Intellipaat which offers you with dedicated course to help you build your practical skillset. Also, read our Selenium tutorial and watch our YouTube video on Selenium Course.