The correct answer is A.
The graph depicts the number of Tweets written and published online in relation to the campaigns for the US presidential elections in 2008 and then in 2012. The number has triplicated. It has risen from 10 million to more than 30 million Tweets.
Therefore these figures evidence the major importance that social networks such as Twitter have acquired in political campaigns.
Answer:
The language " i offer to sell you my 1947 White Fod Torino is not a valid offer because it is oral. It will be difficult to prove this offer or contract later as it is not written down.
