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: This means that more kilowatthours of electricity are generated for every unit of energy consumed by the power plants. Choices:  1. This means for every unit of energy the power plants consume, more kilowatthours of electricity will be generated. 2. This means that every unit of energy consumed by the power plants will generate fewer kilowatthours of energy than before.  3. For every unit of energy used by the power plants, more kilowatthours of electricity are generated, so staffers shouldn't be concerned at all about the energy efficiency of the power plant any longer. 

2