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: The development of credible opinion leaders who are emergency medicine clinicians, who will endorse and advance the concept of alcohol screening and intervention, is the best means of fostering attitudinal change within that specialty. Choices:  1. It will cost money to develop credible opinion leaders. 2. It is important to develop credible opinion leaders. 3. Attitudinal change will be fostered by clinicians who oppose the concept of alcohol screening.

3