Given the task definition and input, reply with output. In this task you are given a premise and two alternatives in Chinese. You must choose the alternative that is more plausibly the cause or effect of the situation described by the premise. The input format is "premise
(1)alternative_1(2)alternative_2", the output should either be "1" or "2" based on your judgment.

那人向我伸出手来。
(1)我握了握他的手。(2)我打了他一耳光。

1