----(2)----

应该是2
理由如下：
在查wikipedia，你可以发现定义中有这样一句话“In weak-form efficiency, future prices cannot be predicted by analyzing price from the past.”  而且，"Share prices exhibit no serial dependencies, meaning that there are no 'patterns' to asset prices."那么看题，只有第二个选项涉及到了future prices, 只有这个选项在"pattern", 所以我认为这个选项是不正确的~

(2)，该现象属于强式效率市场现象