Marsha has been hired by xyz, inc., to update the company web site. marsha discovers that the existing web pages were structured using tables. marsha needs to explain to xyz why the web site needs to be recoded in html5 with css controlling the structure of the document. what is the most important reason for using html5 and css? a. the updates will increase user traffic to the site. b. the updates will improve the overall look and feel of the web site. c. the web site can be interpreted by any html5-compliant browser, including mobile devices. d. the web site will rank higher in many search engines results, as long as the search engine bot recognizes the code.