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: Doctors often miss these effects. Choices:  1. These effects are often missed by doctors. 2. These effects are obvious to a well trained doctor. 3. Nurses often miss these effects.

2