You are a prosecutor and are preparing for an upcoming trial. This is a case of arson, and the defendant is accused of setting fire to a barn, causing it to burn to the ground. You have an abundance of physical evidence that points to the defendant, but you also discover that a set of shoeprints found at the scene matches another person. This would be an example of: a. exculpatory evidence. b. confirmatory evidence. c. inconclusive evidence. d. optional evidence.