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.

Statement: So what if the restorations were in concrete? Choices: 1. It is not a problem to have restorations in concrete. 2. It will be expensive if the restorations are in concrete 3. Is it a problem if the restoration are in concrete?
1