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: In 1860, a treaty gave Britain a permanent beach-head on the Chinese mainland the Kowloon peninsula, directly across Victoria harbor. Choices:  1. A treaty made the British leave the Chinese mainland. 2. A treaty let the British stay on the Chinese mainland. 3. A treaty let the British stay on the Chinese mainland for ten more years.

2