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: Today, office blocks and apartment buildings are of course constructed with modern materials. Choices:  1. Both modern and older materials are used to construct apartment buildings. 2. In these modern times, unfortunately office blocks are constructed with no modern materials. 3. These days, modern materials are used in the construction of office blocks.

2