Question

Sharon observes her older co-worker, robert, being rude to a new trainee. she has seen this behavior in robert whenever the company brings in new trainees. sharon believes that robert resents the younger management trainees, who he refers to as "know-it-alls." she talks to him about _______ to help him understand.

Answer 1

I believe the answer is stereotyping
stereotyping refers to the act to identify all members of one social group with the same characteristics.
This identification tend to be really oversimplified and could be considered as a 'prejudice' towards that social group.