Answer:
B: Unique individuals; very similar to each other
Step-by-step explanation:
In social psychology, the term Outgroup homogeneity effect or ingroup/outgroup bias refers to the tendency to look members of outgroups (groups we don't belong to) as being more similar than members of ingroups, or groups we belong to.
In other words, this effect would be rephrased as 'they are alike and we are diverse'.
Thus, according to this bias, if Lucia is an engineering student, she will likely see other engineering students as unique individuals (since she belongs to this group) and she will see liberal students as very similar to each other (since she doesn't belong to that group)