A Difference Between Contests and Sweepstakes Is That

A difference between contests and sweepstakes is that: 

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