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: Two of these studies provide the basis to form ratios of the WTP of different age cohorts to a base age cohort of 40 years. Choices:  1. The second study is more responsible for the ratios of the WTP than the first one. 2. Only one study provides the basis for the ratios of the WTP. 3. Ratios of the WTP are based on two of these studies.

2