E-text <span>is digital textual information that can be stored, manipulated, and transmitted by electronic devices. The term "e-text" stands for electronic text and it is used for any digital document written, read, transmitted or manipulated by electronic devices, such as smart phones, PCs, tablets,...The origins of the e-text are in the beginning of the Internet.</span>
The term that best fit the blank is RELEVANCE. The Google Adwords system is a system that is created by Google for the purpose of advertising online. Therefore, relevance is very important in this aspect as this shows how useful the ad is to the consumers who are doing the google search.
A correlation is a consistent relationship between two or more variables. It relates to our tendency to draw causation from mere correlation.
Pretty sure it’s keyloggers because it’s the only one that makes sense to me but I’m not 100% sure on that one