This question is missing the answer choices. I was able to find the complete question. Since the passage is the same, I will omit it:
. . . this scenario illustrates:
A. the overjustification effect
B. the outgroup homogeneity effect
C. the bystander effect
D. the continued influence effect
Answer:
The scenario illustrates:
B. the outgroup homogeneity effect.
Explanation:
Ida's beliefs about her own team and the rival team are a typical example of the outgroup homogeneity effect. This effect can be described as a perception of diversity when it comes to one's own group but of homogeneity when it comes to other groups. In other words, a person would perceive members belonging to other groups, such as a rival team, as being more similar to one another. Notice that Ida sees the rival team's members to be "alike in all aspects" while her own team's members are "more diverse in terms of skill, experience, and possessing game strategies."