Answer:
In-group bias
Explanation:
The options for this question are missing. The options are
a) Scapegoat theory
b) Social facilitation
c) In-group bias
d) Groupthink
In psychology, in-group bias refers to the phenomenon where we tend to prefer people that we perceive as similar to ourselves as opposed to "outsiders" or people who we consider as different. In other words, we prefer people who we perceive as part of our "same group" and we think they have better qualities than the ones that don't belong to our group.
In this example, most people cheer for athletes from their own country. Fans believe that athletes from other other countries cheat but athletes from their own country would never cheat. We can see that in this case, people are preferring people who they perceive as part of their same group (same country) and think they have better qualities than the other ones ("athletes from our country would never cheat but the others do")
Therefore, this is an example of c. in-group bias.