Respuesta :
We can infer that the social media has become an important tool in presidential campaigns from the graph.
What did the graph depict?
The graph shown that number of tweets in millions for 2008 was 10 and 32 in 2012, that means, the use of social media have increase along the years.
Hence, the use of social media for presidential campaigns have grown signifcantly and thus, become an important tool in presidential campaigns.
Therefore, the Option A is correct.
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