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: Commercial companies demand knowledge from virtual or engineering prototypes, 90 percent of required engineering drawings for the product supported by test results, demonstration that the product meets customer requirements, a series of disciplined design reviews, and stakeholder agreement that the design is stable and ready for product demonstration before a commitment is made to move forward and invest in product demonstration. Choices:  1. The knowledge provided by virtual prototypes is demanded by commercial companies. 2. The knowledge provided by engineering prototypes is simply not demanded by commercial companies. 3. Engineering prototypes are preferred over virtual prototypes by commercial companies.

2