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: In the United Kingdom, one form of TSE, bovine spongiform encephalopathy (BSE), is believed to be linked to cattle feed containing rendered protein by-products from sheep and goats infected with scrapie, a disease related to BSE. Choices:  1. BSE is believed to come from cattle feed from infected proteins. 2. BSE is believed to come from cattle feed from infected proteins and bad water. 3. BSE is a harmless thing.

3