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 that case, there are nondictatorial voting systems that both respect unanimity and eliminate flip-flops. Choices: 1. The actual hardware for these voting methods is all supplied by one organization. 2. There are voting systems that respect unanimity do exist.  3. The only voting system that respects unanimity and stops flip-flops is a dictatorial one. 

1