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: GAO's activities are designed to ensure the executive branch's accountability to the Congress under the Constitution and the federal government's accountability to the American people. Choices: 1. GAO is designed to ensure the accountability of the executive branch. 2. GAO is designed to ensure how eficient the branch is. 3. GAO is designed to ensure the accountability of the executive branch to the constiuents in their districts.
2