Twitter Was Utilized During the 2012 Presidential Election by Which

Twitter was utilized during the 2012 presidential election by which of the following?

A) Traditional network media outlets to document voting trends
B) Quinnipiac University to poll voters about their voting behavior
C) The Tea Party to rally voters for President Obama
D) Older voters in support of candidates, rather than young voters under the age of 30
E) Mitt Romney to concede, which was retweeted over 7 million times