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: Oh, I've not been briefed. Choices:  1. This is something I should've been briefed on earlier. 2. I haven't been briefed at all. 3. Yes I was briefed this morning.

3