For Presidential Candidates, a Significant Advantage in an Early Primary

For presidential candidates, a significant advantage in an early primary win in New Hampshire is which of the following?

A) Being named the lead horse, which eliminates other partisan challengers
B) The ability to ignore the rest of the primary election season
C) A bonus accrual of 10 super delegate votes at the national nominating convention
D) Being designated as the front-runner, with resulting media exposure
E) The right to speak at the nominating convention of their party