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 fact, a case study where the only people interviewed were senior officials would be seen as a not-good case study, in contrast to one where the views of individuals at all levels affected was obtained. Choices: 1. People at all levels should be interviewed for a case study. 2. Often times the lower level employees give more insightful observations. 3. Senior officials are the most reliable source of information for a case study.

2