Final answer:
Out-groups are characterized by perceived differences and opposition to the in-group. So, the correct answer is option C.
Step-by-step explanation:
The statement that is true about out-groups is C. Out-groups are characterized by perceived differences and opposition to the in-group. In-group is the group that an individual feels they belong to, while an out-group is a group that someone doesn't belong to.
Out-groups are often seen as different from the in-group and can be viewed with disdain or competition. Examples of in-groups and out-groups include sports teams, unions, and sororities. So, the correct answer is option C.