Journalist: Well-known businessman Arnold Bergeron has long been popular in the state, and he has often talked about running for governor, but he has never run. However, we have just learned that Bergeron has fulfilled the financial disclosure requirement for candidacy by submitting a detailed list of his current financial holdings to the election commission. So, it is very likely that Bergeron will be a candidate for governor this year.
I chose E when I was doing GWD. But after I looked at the question carefully, I prefer B instead. My reason is the same as fair_sword's.
Another reason is that the journalist has already answered the question in E. The answer is obviously no because the journalist's conclusion comes from B's fulfillment of the requirement, suggesting that B had never fulfilled the financial disclosure requirements for candidacy before any previous gubernatorial elections.