The Difference Between Contests and Sweepstakes Is That

The difference between contests and sweepstakes is that

A) contests require skill, and sweepstakes require luck.
B) contests are used to generate long-term interest in a brand, and sweepstakes are used to generate immediate interest.
C) contests can require an entry fee, and sweepstakes cannot.
D) contests focus on the game, and sweepstakes focus on the brand.