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: Caterpillar was able to deliver this design in 18 months after the product development was started. Choices: 1. Besides delivering a design, Caterpillar also had the courtesy to deliver specific instructions for the design. 2. The design was delivered by Caterpillar 18 months after product development began. 3. Caterpillar was only able to deliver the design 2 years after product development for it began.

1