1, 3
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I need the options to help you out, thanks. :)
Smart machines I'm pretty sure
All of these are correct and what Would work best is a % Complete_ at what this would do is show a 0-100 completion rate
The correct answer is:
Cross-domain tracking
Explanation and more info in http://www.certificationanswers.com/en/if-you-want-to-track-users-and-sessions-across-multiple-domai....