Detailed Instructions: 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.
Q: Statement: i just sort of know what we can and can't do and it you know it's worked pretty well i haven't really gotten into any major problems without having something formal Choices: 1. I might consider the formal way, but it's not necessary. 2. I have never had trouble with the informal way. 3. I have had a lot of trouble with the informal way.
A:
3