Concept:A stereotype is an unfair generalised belief about a whole group of people.Explanation:Aliya shows stereotype by making a general statement about all Christians.She says Christians think their religion is better than the Islamic religion.This is stereotyping because she judges an entire religious group without considering individual differences.It is not simply about disliking individuals or being annoyed with classmates.Her opinion is a fixed and unfair assumption about a group.Answer:B. she says Christians think their religion is better than Islamic religion.