When evaluation an online source, one of the most important things to ask yourself would be how recently was the website published, in that way you can know if the information is recent and dated, or of it is old and outdated and it wouldn´t help you to continue eny further with your investigation using that information.
You don't have the options, but i would say it means that books can take us to another place mentally and take us away from our problems. Hope it helps !:)
