Given the task definition and input, reply with output. 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.

Statement: These are terrific grounds for deciding to further test substances culled from nature--some of which will surely prove valuable. Choices: 1. These are the best grounds for deciding to test the substances. 2. These is the worst environment for deciding anything about testing substances. 3. These are perfect conditions for deciding about substance tests.
2