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: 5 levels rather than mean PM2. Choices:  1. The mean of PM2 returns a more accurate output. 2. The mean of PM2 is the preferred method. 3. It is possible to find the mean of PM2.

3