When Fred Met Norris on His Campus Tour, Norris Was

When Fred met Norris on his campus tour, Norris was friendly to him and showed him several different parts of campus, mentioning they should hang out, and maybe take a class together. When Fred moved in, he heard repeated stories about how Norris used freshman for money, and to do his coursework for him. However, Fred argued that Norris is still a nice person, and just "misunderstood." His refusal to see that his initial impression of Norris was mistaken is most likely due to the ________.

A) halo effect
B) phi phenomenon
C) primacy effect
D) recency effect