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: At the same time, the lead CEF analysts have responded to the EIA assertions by citing relevant economic literature and noting that the CEF study is one of the most carefully documented and complete analysis of U.S. energy futures that has ever been funded by the U.S. government (Koomey, et al, 2001). Choices:  1. the CEF study is one of the most incomplete analysis of U.S. energy futures 2. the CEF study is one of the most carefully documented and complete analysis of U.S. energy futures 3. the CEF study is one of the most important documents for the US government

1