Answer:
According to the authors of your text, it is primarily the emotional aspect of prejudiced attitudes that make them relatively impervious to rational.
Step-by-step explanation:
Emotions are normally difficult to control or to manage, because they are not built with rational explanations. When prejudice attitudes take over a person's line of thought, it is difficult to contradict it with rational thoughts because as the author clearly states, there is no room for rationality.
Prejudice is mostly sutained by strong feeling about something, and it is very hard to change or brake.