GMAT Critical Reasoning (CR) | Re: Considerable efforts are required to prevent spam. During

28. Considerable efforts are required to prevent spam.During the early days of internet, people seldom received unsolicited email advertisements. However, currently numerous bulk email software and email address finders are developed to collect email address all around the world. These email addresses are used by the Advertisers to market their products and even sell such email lists to other advertisers. As a result, almost everyone gets junk email, and sometimes several and even tens of annoying