You will be given a definition of a task first, then some input of the task.
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.

Statement: For example, suppose a study estimates that the average WTP for a reduction in mortality risk of 1/100,000 is $50, but that the actual mortality risk reduction resulting from a given pollutant reduction is 1/10,000. Choices: 1. Studies might under estimate mortality rates because secondary effects of the pollutants may not be accounted for. 2. Studies can always accurately estimate reductions in mortality rates. 3. If could be estimated that a reduction in mortality risk of 1/100,000 is $50, but the actual reduction may vary.
Output:
3