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: 7 billion in 1996. Choices:  1. 7 billion in the year 1996. 2. 7 billion in the year 1996 and 8 billion in 1997. 3. 7 billion in the year 1995.

3