What is the relationship between first-person point of view and bias?

ABecause first-person point of view is the most personal, the narrator's version of events is often opinionated

.B. Because first-person point of view shares the thoughts of many characters, their feelings are out in the open.

CBecause first-person point of view is told from the perspective of the narrator, the outlook is usually objective

.D. Because first-person point of view is the most impartial, the characters' emotions rarely come into play.