Final answer:
Nicholas's action of openly mocking the clerk's accent and expressing a stereotype about Indian-owned convenience stores is an example of explicit bias.
Step-by-step explanation:
When Nicholas openly mocks the clerk's accent and questions the prevalence of Indian-owned convenience stores with a lack of embarrassment, he is displaying a form of explicit bias. Explicit bias refers to conscious, controllable attitudes and beliefs about race, ethnicity, or other characteristics that are openly expressed. Since Nicholas is making his biased views known without shame, it represents a deliberate expression of his attitudes rather than an unconscious or automatic association, which would be characteristic of implicit bias. This situation does not fit the definition of discriminatory, which involves actions taken against an individual or group, nor prejudicial, which is typically an adjective describing a noun; in this case, 'bias' is the noun.