There are a number of behaviors that could disqualify a musher from the Iditarod race. Two of the most common are animal neglect or cruelty or sabotage of other teams or mushers. Dogs are also checked for illegal drugs.
If Swimmer B was second in the race and D was 1st and Disqualified Swimmer B would then win the race.
They would keep moving on with the race
It means in a race like The Iditarod they scratch or drop out.
The Great Serum Race
sled... stuff
5
They would need to be tought so they cold get though the cold
Norman Vaughan
One reason is that if they didn't have the required amount of dogs, they would be disqualified. I'm not sure about the other reason.
a musher can only have 16 or up numbers of dogs
They might be disqualified
20