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: Mr. Hersheimmer, I think, you already know." A quizzical gleam came into the doctor's eye as he shook hands with Julius. Choices: 1. The doctor was quite sure that Mr. Hersheimmer already knew. 2. The doctor casually suggested that Mr. Hersheimmer knew nothing at all. 3. The Doctor was merely guessing that Mr. Hersheimmer knew about all of it.
2