Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine the neutral choice based on your inference from the statement and your commonsense knowledge. The neutral choice is a sentence that neither agrees nor disagrees with the statement. Indicate your answer as '1', '2', or '3', corresponding to the choice number of the selected sentence. If sentence X agrees with sentence Y, one's correctness follows from the other one. If sentence X disagrees with sentence Y, they can not be correct at the same time.
Input: Statement: He notes that contributions might jump if campaigns used innovative approaches--the PBS donor model, for example, in which campaigns offer donors incentives, such as a T-shirt or a mouse pad featuring the candidate's likeness or slogan. Choices: 1. The PBS donor model is one of the most successful models to date. 2. He thinks contributions would drop if they tried to emulate the PBS donor model. 3. One of the ways PBS encourages donors is to give them a t-shirt with their slogan.

1