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: Historians have noted that the horsemen are using stirrups, the earliest known example of their use in India. Choices:  1. Historians noted that stirrups were used by blacksmiths, and not horsemen. 2. Stirrups were used for other purposes before being used on horses. 3. Historians believe that the earliest example of stirrups being used in India, is by horsemen.

1