Which One of the Following Is the Best Example of Confirmation

Multiple Choice

Which one of the following is the best example of confirmation bias?

A) Paula drops a stone and a paperclip from a second-story window. She sees that they reach the ground at the same time. "I know heavy objects fall faster," she says, "so I must have released the paperclip earlier than the stone."
B) Janet wonders why the moon appears bigger at the horizon than high in the sky. "Maybe it's closer to us when it's on the horizon," she thinks.
C) Rodney has heard that chocolate can be poisonous to dogs and in large amounts can even be fatal. He searches the Internet for a possible explanation for this puzzling fact.
D) Elliot loves watching challenging television game shows. He tries to answer questions along with the contestants, and he keeps score to see whether he might have won cash and prizes if he had actually been on the show.