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: But it won't do this because of some ancestral memory in the genes. Choices:  1. It won't do this because of ancestral memory in the DNA. 2. Thanks to the ancestral memory in the DNA, it will do this everytime.  3. It may do this under very specific circumstances.

2