Answer:
- An attitude.
Step-by-step explanation:
Attitude is demonstrated as the psychological formulation that involves a set of perceptions, beliefs, thoughts, and conduct that characterizes an individual. The attitudes are usually the outcome of experience or instruction(upbringing) that leads to developing a tendency to evaluate the other person(as per their set thoughts or beliefs) positively or negatively.
As per the given description, Corey's immediate negative evaluative reaction about his classmate would be categorized as an attitude of him as his psychological tendency implies that she evaluates the man of rival team skeptically which reflects her beliefs that rivals should be looked at in disfavor. Thus, he exhibits 'an attitude'.