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: Nearly three months ago, when the administration at the National Autonomous University of Mexico proposed a raise in student tuition from 2 cents to about $150 a year, students closed down the classes with a strike, affecting 267,000 students and 30,000 professors. Choices:  1. When a raise in tuition was proposed from 2 cents to about $150 a year, students agreed with the proposition.  2. When a raise in tuition was proposed from 2 cents to about $150 a year, students went on strike. 3. When a raise in tuition was proposed from 2 cents to about $150 a year, students went on strike due to the unfairness of the proposition. 

1