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: Instead, DOD's product development environment relies on cost-type contracting throughout the entire product development process. Choices:  1. DOD's product development environment relies on cost-type contracting 2. The cost-type contracting which DOD's products rely on only last through the 1st month of development. 3. DOD is not the only product development environment that relies on cost-type contracting.

2