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: DOS and Don'ts Choices:  1. A certain situation is a do. 2. There can be both do's and don'ts 3. Neither do's nor don'ts can exist.

3