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: But if he expects to have any credibility, he should understand the difference between the two versions. Choices:  1. The two versions are different and everyone credible knows this. 2. It doesn't really matter if he can distinguish between the two versions. 3. The two versions are very similar so only the most credible people understand the difference.

2