He was using an emotional appeal to cheer people and it’s a little ethical appeal
The correct answer is A. Some students underestimate their capabilities.
Just to let you know why:
In B. the verb is singular and the subject is plural.
In C. the subject is singular and the verb is plural.
In D. the subject is singular and the verb is plural.
"In vague ways he remembered back to the youth of the breed."
This statement is an example of D. THE RACIAL UNCONSCIOUSNESS.
Buck was a pampered domesticated dog before he was taken and sold to strangers. In his current life, he became the dog that he actually is. Adapting to his environment and striving to survive.
Racial unconsciousness refer to the actions or words of an individual that manifests his or her stereotypical views.
In Chapter 4 of the novel, Jack furthers his role as a predator by creating a mask for himself. As he makes it, his obsession blocks out those around him, and the mask swallows up his identity, liberating Jack from "shame and self-consciousness". Jack uses the mask to frighten some of the other boys, and they begin to see only the mask and not Jack. In fact, the mask section closes with the statement, "The mask compelled them", demonstrating that a part (the mask) has actually taken over the whole (Jack). It not only changes how Jack views himself, but it also begins to change the boys' view of Jack.