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: Education  Lessons from Three Case Studies, Choices:  1. There were three case studies about education. 2. THere were twenty case studies. 3. There were three case studies done by the professor.

2