Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine which sentence can be inferred from the statement. Incorrect choices change the meaning in important ways or have details that are not mentioned in the statement. Indicate your answer as 1,2, or 3 corresponding to the choice number of the selected sentence.
Input: Statement: I believe they have to be very careful.  Choices:  1. I believe that they have to be very careful before handling the poison. 2. I don't believe they should be careful. 3. I believe they have to be careful.

3