Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine the neutral choice based on your inference from the statement and your commonsense knowledge. The neutral choice is a sentence that neither agrees nor disagrees with the statement. Indicate your answer as '1', '2', or '3', corresponding to the choice number of the selected sentence. If sentence X agrees with sentence Y, one's correctness follows from the other one. If sentence X disagrees with sentence Y, they can not be correct at the same time.
Input: Statement: These national inventories were prepared for all 50 States at the county level for mobile highway and non-road sources. Choices: 1. The inventory of each state is prepared in the same way. 2. The 48 mainland states prepared national inventories. 3. All 50 states prepared a national inventory for non-road and mobile highway sources.

1