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 contrast, the cumulative case study aggregates information from several sites collected at different and even quite extended times. Choices: 1. All information for the case study was collected at one time. 2. The collective case study takes information from multiple sites and different times. 3. The case study took many years to complete.

3