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.

Statement: The final rule contains standardized test procedures and performance standards to ensure that detergent gasolines provide an effective level of protection against certain engine deposits. Choices: 1. They were not able to come to a final decision for the performance standards. 2. The ruling concluded that standards must be met with engine deposits. 3. They wanted to advocate for an even higher standard but had to settle.
3