Answer:
Selena thinks that all computer programmers are antisocial and boring. When she meets mark, a computer programmer, she immediately decides that she does not like him. Selena's beliefs are a stereotype, and not liking mark is prejudice.
Explanation:
A stereotype is a pre-established conception about an object/person/condition/situation, that is not factual or accurate since it is a perception that ignores others factors, and is mainly based on our limited point of view. This is what Selena's belief reflects when she, without knowing all computer programmers, thinks that all of them are antisocial and boring: she has a pre-established conception.
And a prejudice, often linked with our stereotypes, is an adverse judgment formed beforehand or without knowledge of the facts. The fact that Selena does not like Mark is an example of that: Due to her stereotypes on computer programmers, she believes that whoever is a computer programmer is equal to be unpleasant.
