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: evaluators call such a procedure building an audit trail and use procedures similar to indexing and referencing to establish both the construct validity of the measures reported and the convincingness of the causal explanations developed in the case study (Halpern, 1983). Choices: 1. There is no name for this procedure. 2. This is called building an audit trail by evaluators, but something else by others. 3. Such a procedure is called building an audit trail.

2