Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine the neutral choice based on your inference from the statement and your commonsense knowledge. The neutral choice is a sentence that neither agrees nor disagrees with the statement. Indicate your answer as '1', '2', or '3', corresponding to the choice number of the selected sentence. If sentence X agrees with sentence Y, one's correctness follows from the other one. If sentence X disagrees with sentence Y, they can not be correct at the same time.
Input: Statement: During the class, participants learn to apply unit cost principles to the products they produce as well as how process, activity, and individual cost elements, such as labor, materials, and overhead, are accumulated to become unit or product cost. Choices: 1. During the class, participants do not learn to apply unit cost principles to the products they produce. 2. This class functions in the same manner as an economics class. 3. In the class, participants learn a vast array of product processing knowledge.

2