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: It must have been done since yesterday, otherwise a good housemaid would have at once removed it with blotting-paper and a hot iron.  Choices:  1. It was not cleaned up well.  2. It had to have been done yesterday.  3. It was done as week ago. 

3