Respuesta :
Answer:
"Dean knows nothing about dogs. He simply spent a whole bunch of money to buy a top team and a fancy sled."
Explanation:
According to the excerpt, Jake grumbles about Dean being the winner in pretty much anything he competes in.
However, he was not bothered about that now, but the fact that Dean does not know anything about dogs, he only spends a lot of money getting dogs and a fancy sled.
Therefore, the detail from the excerpt that supports the prediction that Dean will not properly care for his dogs during the race is the detail where Jake alleges that Dean knows nothing about dogs and insinuates that he would do anything to win because he's spent a lot of money on the dogs.