Definition: In this task, you're given a statement, and three sentences as choices. Your job is to determine which sentence clearly disagrees with the statement. Indicate your answer as '1', '2', or '3' corresponding to the choice number of the selected sentence.
Input: Statement: Keeping all those planes, ships, and troops on alert is expensive. Choices:  1. Is expensive to keep military components in alert, but he will do it anyway. 2. Is expensive to keep military components in alert. 3. Is not expensive to keep military components in alert.

3