People are MOST likely to base their stereotypes of a given outgroup on ____.

A) first-hand knowledge of the outgroup
B) first-hand knowledge of other outgroups
C) the assumption that the outgroup is just like the ingroup
D) what they have heard about the outgroup from members of the ingroup

People often base their stereotypes of a given outgroup on what they have heard about the outgroup from members of their own ingroup, rather than on direct personal experience or knowledge. This is because individuals tend to have more interaction and communication within their own ingroup, which influences their perceptions of outgroups.