Read this excerpt from The Call of the Wild by Jack London.
Why does the author include this detail?
By afternoon, Perrault, who was in a hurry to be on the
trail with his despatches, returned with two more dogs.
"Billee" and "Joe" he called them, two brothers, and
true huskies both. Sons of the one mother though they
were, they were as different as day and night. Billee's
one fault was his excessive good nature, while Joe
was the very opposite, sour and introspective, with a
perpetual snarl and a malignant eye.
It is a part of the exposition that describes Buck's
teammates.
It is a part of the exposition that shares Perrault's
family tree.
It is a part of the rising action that describes a brutal
dog fight
O It is a part of the rising action that shows Buck
making friends.

Read the rough-draft paragraph. exercising daily is one of the best ways to the body fight fatigue, illness, stress, and weight gain. whether taking a bike ride, enjoying a walk, or going for a swim, the type of activity is not as important as exercising consistently. often, people begin the new year with the resolution of exercising, but within a few months that commitment is quickly forgotten. the key is to choose something that is accessible, enjoyable, and affordable. exercising just thirty minutes a day not only strengthens the heart and lungs, but it also to boost one’s energy. another way to feel more energized is to eat a balanced diet. since no single food item can supply the body with everything it needs, it is important to eat a variety of foods. so to maintain a long, happy life, get out there and get moving, and enjoy a wide range of healthy meals. which statement best describes the mistake the writer makes in this paragraph?