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: In order to review an acquisition that is using prototypes, the auditor should determine what regulations or guidance the agency has to define a prototyping methodology. Choices: 1. The auditor only reviews the acquisition itself, nothing else. 2. The auditor needs to check within one week if the prototyping methodology is correct before deciding on the acquisition. 3. The auditor should first review the methodology of the agency before the acquisition.

2