Definition: 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.
Input: Statement: OSI's mission is to improve the performance and ensure the accountability of government by conducting oversight investigations concerning allegations of serious wrongdoing that may involve potential violations of criminal law. Choices:  1. OSI's work in unveiling criminal violations on the part of government is especially appreciated by federal agencies. 2. The investigations conducted by the OSI go towards its mission of improving government accountability. 3. OSI deals exclusively with violations of civil law on the part of the government.

3