Read the following context and choose the best option to answer the question.
Context: Hate it when she goes but common sense must prevail . She had Andrea in stitches on Thursday , She was pretending to do my hoovering and I said to her , " What you doing hun " ? Do n't know if she genuinely did'nt hear me or , she was so amazed that I asked her what she was doing when ANY fool could see what she was doing , but she stopped what she was doing , turned round and said , , , " pardon me hun " ?
Question: Why is Andrea laughing in such an over the top manner ?
Options: 
- Andrea is laughing at the subject 's impressions of people .
 - Andrea is laughing at the dark humor of the subject .
 - Andrea is laughing at the narrator 's jokes .
 - None of the above choices .


Andrea is laughing at the subject 's impressions of people .