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: Thorn grabbed the horse's mane and mounted in a single fluid motion. Choices:  1. Thorn mounted in a single fluid motion. 2. Thorn mounted in a single fluid motion to prepare for battle. 3. Thorn failed to mount the horse.

3