According to Figure 19-5 Above,the Correct Rank Order of Social

Multiple Choice

According to Figure 19-5 above,the correct rank order of social media sites from least to most popular as measured by the number of unique U.S.visitors as of September 2011 is

A) LinkedIn, Twitter, YouTube, and Facebook.
B) Facebook, LinkedIn, YouTube, and Twitter.
C) YouTube, LinkedIn, Twitter, and Facebook.
D) Facebook, Vimeo, YouTube, and Twitter.
E) Twitter, Facebook, YouTube, and LinkedIn.