Why Is the Fundamental Attribution Error Likely to Promote Stereotypes

Why is the fundamental attribution error likely to promote stereotypes?

A) because observers see the stereotype-consistent behaviour of others as dispositional
B) because it is so prevalent that it is unaffected by personal motivations
C) because the more a stereotype is violated,the more observers cling to that stereotype
D) because we often perceive members of outgroups as having ulterior motives