Detailed Instructions: 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.
Q: Statement: Sulfates are a key factor in all areas of the United States, particularly in the East, where high humidity increases the light extinction efficiency of sulfates. Choices: 1. High humidity causes many problems in the Eastern United States. 2. Sulfates influence mostly the East of the United States. 3. Sulfates have no affect on any region in the United States more than any other.
A:
2