Answer:
A. He pulls a 1,000 lb. Sled.
Step-by-step explanation:
In the novel The Call of the Wild by Jack London, we have a story about a true friendship between a man and a dog. Buck, after having several bad owners, finally meets John Thorton who saves Buck`s life. Although just a dog, Buck returns the favor several times. They build a strong trust which, among other reasons, caused John Thornton to bet that Buck can pull a thousand pounds worth sled. Buck does not disappoint him and in front of seven hundred people, he pulls the mentioned sled and even wins the euphoric reaction of the audience.