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: Our simulation period-from 2000 through 2075-coincides with the 75year period used for the Social Security Trustees' Report where actuaries calculate trust fund solvency over a long-term horizon that is at least as long as an individual's working life. Choices:  1. Actuaries decide how much each people get monthly. 2. Actuaries have not worked on the trust funds. 3. Actuaries calculate how the trust fund operates.

2