Given the task definition and input, reply with output. 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.

Statement: The REMSAD model was also used to estimate changes in visibility associated with those changes in particulate matter concentrations and to estimate changes in deposition of sulfur, nitrogen, and mercury. Choices: 1. Changes in visibility can be estimated with the REMSAD model. 2. The REMSAD model is going to be superseded with more accurate models soon. 3. There is no way to estimate changes in sulfur deposits.
3