Given the task definition and input, reply with output. In this task, you're given a statement, and three sentences as choices. Your job is to determine which sentence clearly disagrees with the statement. Indicate your answer as '1', '2', or '3' corresponding to the choice number of the selected sentence.

Statement: of the case study method in GAO, so much so that it may be seen as a usual GAO review rather than recognized as what it can be-a case study (U.S. Choices: 1. It is very similar to the usual GAO reviews. 2. It is easy for people to take it as a GAO review. 3. There is no way anyone would think that this is a usual GAO review.
3