Why Would Something as Apparently Innocuous as a Defendant's Name

Why would something as apparently innocuous as a defendant's name influence the inferences and decisions of mock jurors in the experiment by Galen Bodenhausen (1988) ?

A) Negative out-group stereotypes were activated,and they biased information processing.
B) Group polarization during deliberations made stereotypes more extreme.
C) Groups were more likely than individuals to commit the ultimate attribution error.
D) Names are often a criterion used to establish minimal in-groups and out-groups.