Multiple Choice
According to Figure 19-4 above,the correct rank order of social network sites from MOST TO LEAST POPULAR as measured by the number of unique U.S.visitors as of mid-2013 is
A) Facebook,LinkedIn,YouTube,and Twitter.
B) Facebook,Twitter,YouTube,and LinkedIn.
C) YouTube,Facebook,Twitter,and LinkedIn.
D) Facebook,YouTube,LinkedIn,and Twitter.
E) Twitter,Facebook,YouTube,and LinkedIn.
Correct Answer:

Verified
Correct Answer:
Verified
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