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: Its other claim to fame is an automatic lighthouse whose signal can be seen 48 km (30 miles) away. Choices:  1. The signal from its automatic lighthouse is viewable from 30 miles away.  2. The automatic lighthouse was built approximately ten years ago.  3. The automatic lighthouse's signal cannot be seen from any further than five miles away. 

3