Read the following context and choose the best option to answer the question.
Context: ! And then the night after that I had another dream that Arashi was going to meet my sister for something and they were going to be at my house . I was so happy I asked my sister to ask them to stay a little longer . I was so busy in my dream that by the time I remembered they were gone and I did n't get their autographs .
Question: Why did these things happen ?
Options: 
- They had an active imagination
 - They wanted their sister to stay longer
 - They were so busy
 - They wanted an autograph


They had an active imagination