Final answer:
Crooks changes his mind about coming along because he remembers his father's advice to steer clear of white people (Option D).
Step-by-step explanation:
The most likely reason Crooks changes his mind about coming along to the new farm with Lennie, George, and Candy (page 83) is option D. He remembers his father's advice to steer clear of white people.
After initially refusing to join them, Crooks changes his mind because he realizes that he may face trouble and prejudice if he stays behind. He may also feel a sense of camaraderie and belonging with the others, despite the challenges they may face.
Crooks' change of heart reflects the complexities of race and identity in the novel, as well as the desire for companionship and a sense of community.