Despite the lack of a passage in this question, it is still possible to identify the option containing a subject of <em>ridicule.</em>
The correct answer is: Squealer calls the other animals ignorant.
"To ridicule" means to perform an action that undermines the reputation of someone or something in order to make them/it seem foolish. This is accomplished in the sentence as the subject, Squealer, humiliates the object, the other animals, by calling them "ignorant".
I think they viewed the American dream as freedom, mutual respect no matter what race, and freedom to work at a job you choose.
"<span>How many times greater is the acidity of hydrochloric acid than vinegar?" is the best option from the list, since this is what the chapter is primarily dealing with. </span>