One common method of gathering new data is A$/$B testing. What does this refer to$?$Select an answer:A$/$B testing refers to a form of responsive web design, where a web site's content is reformatted by the kind of device a person is using to access it$.$A$/$B testing is a randomized experiment in which people visiting a website see one of two different versions. The response rates are then compared to choose the most effective version of the website.A$/$B testing refers to the inclusion of alternative text for images on a website.A$/$B testing refers to the creation of alternative websites that are entirely text$-$based, for use on poor internet connections.