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: Strict emission controls for cars and industry have considerably reduced L.A.'s notorious smog, but air quality can still be poor. Choices:  1. The government thinks of ways to reduce air pollution. 2. There is no control over the emissions in the car industry. 3. Smog was reduced by strict emission controls issued for the car industry.

2