About of state court judges and magistrates said that they have used social media in either their personal or professional lives on a 2012 survey.

I believe the answer is one-third.
They viewed that social media as one of the most effective tool in garnering people attention.
Because not only it provides easy access between the citizens and the government officials, it also allow the officials to obtain general statistic on citizens' favorability.

Ibelieve your answer would be answer choice a