What Is the Primary Benefit for a Candidate Who Emerges

What is the primary benefit for a candidate who emerges as a frontrunner in a political party's campaign for president?

A) The federal government increases the amount of funding for the campaign.
B) Media coverage of the candidate tends to increase significantly.
C) The candidate could experience an increase in support in the public opinion polls.
D) It guarantees the candidate a spot on the general election ballot.
E) State governments are required at this point to contribute campaign funding for the candidate.