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: Twenty minutes later, she let McGrath out. Choices:  1. McGrath needed to be let out to go to the bathroom after twenty minutes. 2. After twenty minutes, she left McGrath in 3. After less than half an hour, she let him out.

2