Personally I would go for answer 2, but I am not completely sure
Answer:
He explains Hamlet’s behavior through Ophelia’s dialogue, thereby tying up loose ends in the plot.
Explanation:
Thanks to this excerpt, the reader is able to visualize a crucial situation between two characters in a specific point in the story.
Ophelia's horrified reaction to her encounter with Hamlet allowed for a very detailed and critical description of Hamlet's behavior and his then current state of mind, which might have been perceived as a loose end by the reader.
So all you have to do is write in the second column what you know. The third is for your conclusion, or your answer
