Websites for multiple screen consumer
 

Since more and more consumers are using different screen device for browsing, emailing, shopping, etc. So, mobile friendly website has become another important factor in SEO.
Google has provided a solution: the three basic ways you can build a mobile-friendly website: responsive design, dynamic serving, and a fully separate mobile site.
From these three which one you have selected? Why?

Mobile friendly website as well as responsive design both are used because 40% people using smart phones. Mobile size & desktop size also important so use responsive design.