In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.

[Q]: Here's a brilliant piece from Roger Cohen , penned right before last week's 9/11 anniversary : Wednesday , September 10 , 2008 NEW YORK : And in the seventh year after the fall , the dust and debris of the towers cleared . And it became plain at last what had been wrought . For the wreckage begat greed ; and it came to pass that while America's young men and women fought , other Americans enriched themselves . 
Question: Why was there a 9/11 anniversary ?
[A]: Because 9/11 was a very significant event in history .


[Q]: She had tried over facebook , but he hadn't returned her wall postings . I figured I knew why , but she clutched a large blue rock that was hanging at the base of her neck . The necklace went really well with her blue and red sun - dress . She giggled and said that she had finally put that boys rock on a necklace . After she left I tracked her down , alone . 
Question: What is a likely reason for the rock to be on a necklace ?
[A]: It has sentimental value


[Q]: Addison and Sasha waited for the answer to their question . 
Question: What will happen to Sasha?
[A]:
gain knowledge