Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine which sentence can be inferred from the statement. Incorrect choices change the meaning in important ways or have details that are not mentioned in the statement. Indicate your answer as 1,2, or 3 corresponding to the choice number of the selected sentence.
Input: Statement: Figure 7. Projected Marginal Cost of SO2 Reductions ($/Ton) Choices:  1. In the Figure 20, Projected Marginal Cost of SO2 Reductions ($/Time) 2. In the Figure 7, Projected Marginal Cost of SO2 Reductions ($/Ton) 3. In the Figure 7, Projected Marginal Cost of SO2 Reductions ($/Ton)- which is what has to be studied, according to the teacher.

2