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: The first real settlements, founded in the Late Stone Age (c. 7500 b.c.   4000 b.c. ), included the world's oldest walled town, Jericho. Choices:  1. The oldest walled town was not founded in the Late Stone Age. 2. Jericho was the biggest town founded in the Late Stone Age. 3. Jericho is the oldest walled town in the world.

3