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: These  1) approving both changes in existing services and the establishment of new services---those are known as classification cases; 2) adjudicating complaints from anyone who believes the Postal Service is not providing rates or services as required by law; 3) issuing advisory opinions when the Postal Service proposes a substantially nationwide change in the nature of its services; and, 4) our mostly recently assigned task, providing Congress with annual reports about the costs and revenues of international mail. Choices: 1. The Postal Service undergoing a review across all of its activities. 2. Complaints from people who believe the Postal Service is not following the law should be ignored. 3. It's necessary to issue advisory opinions when a nationwide change to the Postal Service is proposed.

1