Which Statement Best Reflects the Effect Debates Have on the Outcome

Which statement best reflects the effect debates have on the outcome of the election?

A) Data suggests that there is no correlation between a debate and the outcome of the election.
B) Those who do poorly during debates usually make gains in other areas and win the election.
C) Candidates who perform better than their opponent in most of the debates tend to win the election.
D) The performance of a candidate in a debate is not a clear indicator of their electoral success.