Answer:
prejudice
Step-by-step explanation:
This negative attitude that Graham has towards his co-worker is an example of prejudice. Prejudice is a described as an affective feeling usually unfavorable towards another individual solely based on their perceived group membership this includes the individual's political affiliation, sex, gender, beliefs, values, social class, age, disability, religion, sexuality, race, ethnicity, language, nationality, beauty, occupation, education, criminality, sports team affiliation or any other personal characteristics.