Read the following context and choose the best option to answer the question.
Context: Since then we have n't done anything like that again but I admit I do sort of miss it . But now it was time for us to play a joke on them and we refused to fail . " Tricky , you go set up the camera on the other side of the pool and make sure you can get everything on tape . " " Panda , give me a few minutes to set up first ok ? " " Sure .
Question: Why are the people setting up a camera at the pool ?
Options: 
- They want to play a prank on their friends .
 - They want to enhance the security at the pool and tape possible intruders .
 - They do not want to miss the the swim meet at the pool .
 - They want to tape the people who come in and out of the pool .


They want to play a prank on their friends .