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: As a formal matter, Standard A mail in the United States is broken into two subclasses, one called Regular Standard A and the other called Enhanced Carrier Route Standard A. This paper will have some implications for this distinction, but will not focus specifically on it. Choices:  1. Standard A mail has two different subclasses. 2. Standard A mail has four different subclasses. 3. Standard A mail has two different subclasses with very different prices.

2