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 methodological meaning is important in understanding what differentiates a case study from a noncase study and a good case study from a not-so-good case study. Choices: 1. A two day course taught the difference between good and bad cases and a case versus a non-case. 2. One must understand a case from a noncase as well as the quality of a good case from a bad case. 3. One case is as good as another.
1