Nate Silver of FiveThirtyEight

Nate Silver of FiveThirtyEight.com and Simon Jackman of Pollster.com are known for what technique?

A) using Internet surveys to conduct their polls
B) creating an average of polls that is more accurate than any individual poll
C) combining academic research with polling techniques
D) conducting daily polls to get a more accurate reading
E) writing poll questions in such a way that they push people toward a certain answer