Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Statement: Each model uses cost drivers, which are parameters such as the level of experience of the programmers, the reliability requirements of the programs, and the complexity of the project, along with the estimated project size, to derive overall cost and schedule estimates for the acquisition. Choices:  1. Cost and schedule estimates for the acquisition depend on multiple cost drivers, including programmers' level of experience, the program's reliability requirements, and project size. 2. The higher the level of programmer experience, the more expensive it will be, and thus the acquisition will take longer. 3. The cost and schedule estimates for the acquisition are randomly determined.
Student:
3