Agatha Plum Is Determined That Having a Gun Is Important

Agatha Plum is determined that having a gun is important for self-protection. Agatha could go to look up statistics about how many people save themselves from crime by using their gun, what the risk of being a victim of crime is in her area, and what the other side of the argument is all about. She notices only information that supports her position, though. She is demonstrating _____

A) mental set.
B) confirmation bias.
C) stereotype threat.
D) mindlessness.